522222222225 has 72 divisors (see below), whose sum is σ = 947614625568. Its totient is φ = 251671404800.

The previous prime is 522222222173. The next prime is 522222222229.

522222222225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 522222222225 - 2¹⁰ = 522222221201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 522222222192 and 522222222201.

It is not an unprimeable number, because it can be changed into a prime (522222222229) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 22997077 + ... + 23019773.

It is an arithmetic number, because the mean of its divisors is an integer number (13161314244).

Almost surely, 2^522222222225 is an apocalyptic number.

522222222225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

522222222225 is a deficient number, since it is larger than the sum of its proper divisors (425392403343).

522222222225 is a wasteful number, since it uses less digits than its factorization.

522222222225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23055 (or 22883 counting only the distinct ones).

The product of its digits is 25600, while the sum is 30.

It can be divided in two parts, 522222 and 222225, that added together give a palindrome (744447).

The spelling of 522222222225 in words is "five hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-five".