It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 201 201 is not a prime number.
For example, 201 201 can be divided by 3: 201 201 / 3 = 67 067.
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For 201 201 to be a prime number, it would have been required that 201 201 has only two divisors, i.e., itself and 1.
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201 201 is an odd number, because it is not evenly divisible by 2.
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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 201 201 is about 448.554.
Thus, the square root of 201 201 is not an integer, and therefore 201 201 is not a square number.
The square of a number (here 201 201) is the result of the product of this number (201 201) by itself (i.e., 201 201 × 201 201); the square of 201 201 is sometimes called "raising 201 201 to the power 2", or "201 201 squared".
The square of 201 201 is 40 481 842 401 because 201 201 × 201 201 = 201 2012 = 40 481 842 401.
As a consequence, 201 201 is the square root of 40 481 842 401.
The multiples of 201 201 are all integers evenly divisible by 201 201, that is all numbers such that the remainder of the division by 201 201 is zero. There are infinitely many multiples of 201 201. The smallest multiples of 201 201 are: