225521125522 has 64 divisors (see below), whose sum is σ = 429177139200. Its totient is φ = 86320759680.

The previous prime is 225521125519. The next prime is 225521125541.

225521125522 is nontrivially palindromic in base 10.

225521125522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15920679 + ... + 15934837.

It is an arithmetic number, because the mean of its divisors is an integer number (6705892800).

Almost surely, 2^225521125522 is an apocalyptic number.

225521125522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225521125522 is a deficient number, since it is larger than the sum of its proper divisors (203656013678).

225521125522 is a wasteful number, since it uses less digits than its factorization.

225521125522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15991.

The product of its digits is 40000, while the sum is 34.

The spelling of 225521125522 in words is "two hundred twenty-five billion, five hundred twenty-one million, one hundred twenty-five thousand, five hundred twenty-two".