222123310031 has 16 divisors (see below), whose sum is σ = 259397462016. Its totient is φ = 186239129856.

The previous prime is 222123309983. The next prime is 222123310043. The reversal of 222123310031 is 130013321222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222123310031 is a prime.

It is a super-2 number, since 2×222123310031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222123309985 and 222123310012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222123310061) 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, 424895 + ... + 790431.

It is an arithmetic number, because the mean of its divisors is an integer number (16212341376).

Almost surely, 2^222123310031 is an apocalyptic number.

222123310031 is a deficient number, since it is larger than the sum of its proper divisors (37274151985).

222123310031 is a wasteful number, since it uses less digits than its factorization.

222123310031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367438.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 222123310031 its reverse (130013321222), we get a palindrome (352136631253).

The spelling of 222123310031 in words is "two hundred twenty-two billion, one hundred twenty-three million, three hundred ten thousand, thirty-one".