"Forthtillion" doesn't appear in any of my reference works. If you mean quadrillion, that's 15 zeros. If you made it up, you can have as many zeros as you want.
fithtillion
how many zeros in one billion
Seven zeros.
12 zeros.12 zeros.12 zeros.12 zeros.
33 zeros
there are 21 zeros
Six zeros: 127,000,000
how many zeros in 12 lakh
8 zeros 1,300,000,000
1,000,000,000,000,000,000,000,000,000 = 9 x 3 zeros = 27 zeros
In USA, there are 54 zeros, and in Great Britain, there are 102 zeros.
A trillion has 12 zeros