6,006,006,006 would be the American notation.
This is how you write six billion two hundred million twelve thousand six: 6,200,012,006
42,602,005,007 Forty two billion six hundred and two million five thousand and seven!
3,600,030,000
126,000,000,000 is One hundred and twenty six thousand million (or one hundred and twenty six billion).
3,060,066,900
This is how you write six billion two hundred million twelve thousand six: 6,200,012,006
Two billion nine million six thousand one is written as 2,009,006,000
ten billion six hundred eighty-six million one hundred thousand
7,006,030,000
6,200,012,006
3,004,006,006
6,200,012,006
6,200,012,005
9,002.004,006
7,006,005,400
42,602,005,007 Forty two billion six hundred and two million five thousand and seven!
28,006,300,006