522206220 has 48 divisors (see below), whose sum is σ = 1473712128. Its totient is φ = 138156480.

The previous prime is 522206213. The next prime is 522206231. The reversal of 522206220 is 22602225.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26646 + ... + 41885.

It is an arithmetic number, because the mean of its divisors is an integer number (30702336).

Almost surely, 2^522206220 is an apocalyptic number.

It is an amenable number.

522206220 is an abundant number, since it is smaller than the sum of its proper divisors (951505908).

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

522206220 is a wasteful number, since it uses less digits than its factorization.

522206220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68670 (or 68668 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 522206220 is about 22851.8318740533. The cubic root of 522206220 is about 805.2808042656.

Adding to 522206220 its reverse (22602225), we get a palindrome (544808445).

The spelling of 522206220 in words is "five hundred twenty-two million, two hundred six thousand, two hundred twenty".