522122223 has 32 divisors (see below), whose sum is σ = 850032640. Its totient is φ = 278419680.

The previous prime is 522122221. The next prime is 522122257. The reversal of 522122223 is 322221225.

It is not a de Polignac number, because 522122223 - 2¹ = 522122221 is a prime.

It is a super-2 number, since 2×522122223² = 545223231500923458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 522122223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522122221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16968 + ... + 36498.

It is an arithmetic number, because the mean of its divisors is an integer number (26563520).

Almost surely, 2^522122223 is an apocalyptic number.

522122223 is a deficient number, since it is larger than the sum of its proper divisors (327910417).

522122223 is a wasteful number, since it uses less digits than its factorization.

522122223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19627.

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

The square root of 522122223 is about 22849.9939387300. The cubic root of 522122223 is about 805.2376254114.

Adding to 522122223 its reverse (322221225), we get a palindrome (844343448).

The spelling of 522122223 in words is "five hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-three".