This is how you write 12 million dollars in numbers: $12,000,000.
twelve million dollars
It is: 12,000,000
5 billion 6 million 12 = 5,006,000,012
12,010,000
12,002,000
You would write it as $12,000,290
one million is 1 with 6 zeros one million million is 1 with 6+6 or 12 zeros 10 million is 10 with 12 zeros
It is: 1.2*107
twelve million
9,007,000,012
Expressed in figures, this is equal to 1,200,000,000.