222323213231 has 16 divisors (see below), whose sum is σ = 270842035200. Its totient is φ = 178247897568.

The previous prime is 222323213227. The next prime is 222323213239. The reversal of 222323213231 is 132312323222.

It is a cyclic number.

It is not a de Polignac number, because 222323213231 - 2² = 222323213227 is a prime.

It is a super-2 number, since 2×222323213231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222323213231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222323213239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10569260 + ... + 10590273.

It is an arithmetic number, because the mean of its divisors is an integer number (16927627200).

Almost surely, 2^222323213231 is an apocalyptic number.

222323213231 is a deficient number, since it is larger than the sum of its proper divisors (48518821969).

222323213231 is a wasteful number, since it uses less digits than its factorization.

222323213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21159638.

The product of its digits is 5184, while the sum is 26.

Adding to 222323213231 its reverse (132312323222), we get a palindrome (354635536453).

The spelling of 222323213231 in words is "two hundred twenty-two billion, three hundred twenty-three million, two hundred thirteen thousand, two hundred thirty-one".