225137321701 has 2 divisors, whose sum is σ = 225137321702. Its totient is φ = 225137321700.

The previous prime is 225137321683. The next prime is 225137321741. The reversal of 225137321701 is 107123731522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137195419201 + 87941902500 = 370399^2 + 296550^2 .

It is a cyclic number.

It is not a de Polignac number, because 225137321701 - 2²⁵ = 225103767269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225137321741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112568660850 + 112568660851.

It is an arithmetic number, because the mean of its divisors is an integer number (112568660851).

Almost surely, 2^225137321701 is an apocalyptic number.

It is an amenable number.

225137321701 is a deficient number, since it is larger than the sum of its proper divisors (1).

225137321701 is an equidigital number, since it uses as much as digits as its factorization.

225137321701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The spelling of 225137321701 in words is "two hundred twenty-five billion, one hundred thirty-seven million, three hundred twenty-one thousand, seven hundred one".