522431222 has 16 divisors (see below), whose sum is σ = 793497600. Its totient is φ = 257952360.

The previous prime is 522431207. The next prime is 522431249. The reversal of 522431222 is 222134225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48179 + ... + 58017.

It is an arithmetic number, because the mean of its divisors is an integer number (49593600).

Almost surely, 2^522431222 is an apocalyptic number.

522431222 is a deficient number, since it is larger than the sum of its proper divisors (271066378).

522431222 is a wasteful number, since it uses less digits than its factorization.

522431222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171.

The product of its digits is 1920, while the sum is 23.

The square root of 522431222 is about 22856.7544065206. The cubic root of 522431222 is about 805.3964442611.

Adding to 522431222 its reverse (222134225), we get a palindrome (744565447).

The spelling of 522431222 in words is "five hundred twenty-two million, four hundred thirty-one thousand, two hundred twenty-two".