According to the Exif data on Picasa, the photo is 20.66-megapixels.

A photo posted on Picasa is rumored to be from the unreleased Sony Xperia "Honami" smartphone. The image, taken on a Sony camera with a model number that has been previously associated with the rumored Honami, has dimensions that are equivalent to 20.66MP.

Other measurements of note recorded by Picasa are the device's f/2.0 aperture and 5mm focal length. Tech bloggers are also speculating that the phone will offer a 5-inch display, Snapdragon 800 processor and Android 4.2.2 operating system. 

Sony is expected to announce the Honami smartphone on September 4 in Berlin at the IFA electronics trade show.