522271220 has 12 divisors (see below), whose sum is σ = 1096769604. Its totient is φ = 208908480.

The previous prime is 522271219. The next prime is 522271223. The reversal of 522271220 is 22172225.

522271220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 286218724 + 236052496 = 16918^2 + 15364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522271223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13056761 + ... + 13056800.

It is an arithmetic number, because the mean of its divisors is an integer number (91397467).

Almost surely, 2^522271220 is an apocalyptic number.

It is an amenable number.

522271220 is an abundant number, since it is smaller than the sum of its proper divisors (574498384).

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

522271220 is a wasteful number, since it uses less digits than its factorization.

522271220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26113570 (or 26113568 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 522271220 is about 22853.2540352572. The cubic root of 522271220 is about 805.3142144898.

The spelling of 522271220 in words is "five hundred twenty-two million, two hundred seventy-one thousand, two hundred twenty".