Something like this ==> 3/2
If you want all the numbers added, it's 13212. If not, then it is impossible to write or type twelve thousand twelve hundred twelve in simplest form.
12.08
Twelve and eight tenths.
8.012
twelve
eight hundred twelve thousand.
Twelve and fifty-eight thousandths.
It is 12.8
Twelve and eight tenths.
twelve and eight tenths.
Eight hundred twelve.
It is eight twelve: il est huit heures douze it is eight: Il est huit heures it is twelve: Il est minuit