22222233231 has 16 divisors (see below), whose sum is σ = 33010979328. Its totient is φ = 13181465600.

The previous prime is 22222233227. The next prime is 22222233233. The reversal of 22222233231 is 13233222222.

22222233231 = 15329² + 15330² + ... + 15422².

It is a cyclic number.

It is not a de Polignac number, because 22222233231 - 2² = 22222233227 is a prime.

It is a super-2 number, since 2×22222233231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222233233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7162290 + ... + 7165391.

It is an arithmetic number, because the mean of its divisors is an integer number (2063186208).

Almost surely, 2^22222233231 is an apocalyptic number.

22222233231 is a deficient number, since it is larger than the sum of its proper divisors (10788746097).

22222233231 is a wasteful number, since it uses less digits than its factorization.

22222233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14327742.

The product of its digits is 3456, while the sum is 24.

Adding to 22222233231 its reverse (13233222222), we get a palindrome (35455455453).

The spelling of 22222233231 in words is "twenty-two billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred thirty-one".