Apple's second-quarter earnings by the numbers

Strong iPhone sales boosted Apple's results, which are likely to revise the recent sell-off of the stock.

CEO Tim Cook introduces a new iPad, March 7, 2012.Photo by Donald Bell/CNET

Apple posted another blowout quarter, doubling profit to $11.62 billion, with revenue surging nearly 60 percent to $39.19 billion. Boosting its results: sales of more than 35 million iPhones.

iPad sales came in at 11.8 million. That's a 151 percent jump from the year-ago quarter, but it fell short of the 12 million to 13 million that Wall Street was looking for. Apple enters the new quarter with cash in excess of $110 billion.

Here is a breakdown of some key numbers for the quarter:

• 47.4 percent gross margin, compared to 41.4 percent in the year-ago quarter.

• 64 percent of the quarter's revenue in international sales.

• 35.1 million iPhones sold, representing 88 percent unit growth over the year-ago quarter. Said CFO Peter Oppenheimer: Earnings were powered "by fantastic iPhone sales."

• 11.8 million iPads, a 151 percent boost from a year ago. "[We] can't make enough" iPads, said Oppenheimer. "[We're] selling as fast as we can make them."

• 4 million Macs sold during the quarter, a 7 percent unit increase over the year-ago quarter.

• Retail store sales of $4.4 billion up 38 percent from a year ago. Apple now has 363 stores, nearly a third of them outside of the United States.

• 826,000 Macs sold in Apple retail stores, and more than half were to first time Mac users. It opened two stores, one in Amsterdam and one in Houston. Stores saw 85 million visitors in the quarter, accounting for an average of 18,000 per week.

• $7.9 billion in sales in China during the quarter.

• iPod sales fell 15 percent to 7.7 million units; iPods now make up 70 percent of the MP3 player market.

• Apple revenues in Spain grew "materially less than we grew in Europe or worldwide," said Cook, adding that "Spain is just in a terrible economic situation."

• iTunes Store: $1.9 billion in revenue -- that's up 30 percent year over year, Oppenheimer says. There are now 28 million songs in the iTunes Store, which had 85 million visitors during the quarter, up from 71 million a year ago.

• 600,000 apps in the App Store, with more than 200,000 just for the iPad.

• Sold more than 50 million iOS devices in the quarter.

• 125 million users around the world on iCloud.

• $14 billion in cash flow from operations during the quarter.

• $110.2 billion in cash at the end of the March.

• Apple shares trade more than 4.8 percent higher after hours, cracking the $600 mark.