What camera resolutions does Sony Xperia ZL2 feature?

Here are details about the Sony Xperia ZL2's camera sensors:
Rear Camera : 20.7 megapixel
Front Camera : 3 megapixel
Flash : Dual LED
Camera Options :
+ Auto Flash
+ Back-illuminated sensor (BSI)
+ Exmor-R CMOS image sensor
+ Red-eye Reduction
+ Self-timer
+ Touch to focus