You write it: twelve
You write the number in words >:D
Write out the number 32 as thirty two (in words).
So for example if you wanted to write 4 in words it would be four.
I would write 18,000,000 as eighteen million
Point two two five seven is in words. It is written because after decimal we write each number as single number.
The number 90 is written out in words as such: ninety. You should spell out a number rather than write it in number form in particular scenarios, such as if you are beginning a sentence with a number.
15 = fifteen