No.
There is no such number.
The square of a real number is always 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.
Of course, not only can it be a real number but it is a real number. When you take the square root times itself, the result is a number that is real.
No.
A jillion is not a real number. Informally, it just means a lot.
A zillion is not a real number. Likewise for numbers such as jillion and gazillion.
Yes, it is an extremely large number of people or things.
No.
There is no such number.
There are two meanings for the phrase "real number". 1,000,000 is a real number no matter which of them you use. (Numbers that are not "real numbers" are "imaginary" or "complex" numbers if you're using the phrase in one sense, and "made-up" numbers like "a jillion" in the other sense.)
"Jillion" is an informal, slang word that's used to mean "really big number". It has no formal mathematical definition, and it's not a number that can be written, or used for ordinary arithmetic operations.
One jillion bubbles!
A gazillion is a fictitious number, as are a Zillion, and Jillion.
No.
my addiction substance... YOUTUBE!!!! they have like a jillion of fanmade ones and real ones too, and my laptop does not have flash... :D