522221168 has 20 divisors (see below), whose sum is σ = 1156347120. Its totient is φ = 223809024.

The previous prime is 522221159. The next prime is 522221171. The reversal of 522221168 is 861122225.

It is a self number, because there is not a number n which added to its sum of digits gives 522221168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2331233 + ... + 2331456.

It is an arithmetic number, because the mean of its divisors is an integer number (57817356).

Almost surely, 2^522221168 is an apocalyptic number.

It is an amenable number.

522221168 is an abundant number, since it is smaller than the sum of its proper divisors (634125952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522221168 is a wasteful number, since it uses less digits than its factorization.

522221168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662704 (or 4662698 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 522221168 is about 22852.1589352079. The cubic root of 522221168 is about 805.2884878346.

The spelling of 522221168 in words is "five hundred twenty-two million, two hundred twenty-one thousand, one hundred sixty-eight".