No
A zillion is a indeterminately large number.
There is no such thing as a zillon.
2 zillon pounds
100000000000000 billon zillon quadruaple ztrillon yen
a zillon more than i make
100000000000000 billon zillon quadruaple ztrillon yen
The square of a real number is always a real number.
The real number in '101.7' is 101. A real number is a positive whole number.
Nearly any number you can think of is a Real Number. So 8 is a real number.
Yes, zero is a real number. It is not a counting number, but it is an integer, a rational number, and a real number.
The other real number is 3/pi. I will bet that was not the real number you had in mind and so is an "other" real number.
100000000000000000000000000000 there you go. A zillion has an unspecified number of zeros: A zillion does not exist as a real number, but is used by writers (especially of fiction) to represent an extremely large number in a more humorous way than saying just "infinite". It can also be used to exaggerate fairly small large numbers, like million or billions, when the context suggests that the number cannot be taken seriously.