How much MegaPixel are there in a Ultrapixel?

I was reading the news paper and in the mobile phone section i was really confused when i say it supporting ultramegapixel of camera. I want to know that how much megapixel is supported in one ultramegapixel. Please any one knows that how much megapixel are there in ultra megapixel.

What are you trying to ask how much megapixel in ultrapixel, i think you want to know 1 MP = how many ultrapixel. If yes then reply and let me know.