Proof-read feminine and masculine number

Question

Hello, we are learning numbers in Spanish and the teacher has given me a number, which has to be put into words depending on the noun after it (chico, chica).

Is it correct:

1.111.671.101 (one billion one hundred and eleven million six-hundred and seventy-one thousand one hundred one)

Masculine: un billón ciento once millones seiscientos setenta y un mil ciento uno chicos

Feminine: un billón ciento once millones seiscientas setenta y un mil ciento una chicas

Thank you in advance!

Answer 1

First, the English billions are not the Spanish billions.

English billion: 1,000,000,000 (Imperial System)

Spanish billion: 1 000 000 000 000 (International System)

Note that the thousand separators are different.

So, in Spanish you should say:

1.111.671.101

Male: Mil ciento once millones seiscientos setenta y un mil ciento un chicos

Female: Mil ciento once millones seiscientas setenta y un mil ciento una chicas