It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 501 216 012 is not a prime number.
For example, 501 216 012 can be divided by 2: 501 216 012 / 2 = 250 608 006.
For 501 216 012 to be a prime number, it would have been required that 501 216 012 has only two divisors, i.e., itself and 1.
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501 216 012 is an even number, because it is evenly divisible by 2: 501 216 012 / 2 = 250 608 006.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 501 216 012 is about 22 387.854.
Thus, the square root of 501 216 012 is not an integer, and therefore 501 216 012 is not a square number.
The square of a number (here 501 216 012) is the result of the product of this number (501 216 012) by itself (i.e., 501 216 012 × 501 216 012); the square of 501 216 012 is sometimes called "raising 501 216 012 to the power 2", or "501 216 012 squared".
The square of 501 216 012 is 251 217 490 685 184 128 because 501 216 012 × 501 216 012 = 501 216 0122 = 251 217 490 685 184 128.
As a consequence, 501 216 012 is the square root of 251 217 490 685 184 128.
501 216 012 is a number with 9 digits.
The multiples of 501 216 012 are all integers evenly divisible by 501 216 012, that is all numbers such that the remainder of the division by 501 216 012 is zero. There are infinitely many multiples of 501 216 012. The smallest multiples of 501 216 012 are: