225170404202 has 24 divisors (see below), whose sum is σ = 353172558564. Its totient is φ = 107661692864.

The previous prime is 225170404177. The next prime is 225170404219. The reversal of 225170404202 is 202404071522.

It can be written as a sum of positive squares in 2 ways, for example, as 202868267281 + 22302136921 = 450409^2 + 149339^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4283108 + ... + 4335360.

Almost surely, 2^225170404202 is an apocalyptic number.

225170404202 is a deficient number, since it is larger than the sum of its proper divisors (128002154362).

225170404202 is a wasteful number, since it uses less digits than its factorization.

225170404202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56374 (or 56351 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

Adding to 225170404202 its reverse (202404071522), we get a palindrome (427574475724).

The spelling of 225170404202 in words is "two hundred twenty-five billion, one hundred seventy million, four hundred four thousand, two hundred two".