12222320031 has 12 divisors (see below), whose sum is σ = 17655529008. Its totient is φ = 8147721024.

The previous prime is 12222320009. The next prime is 12222320069. The reversal of 12222320031 is 13002322221.

It is not a de Polignac number, because 12222320031 - 2⁵ = 12222319999 is a prime.

It is a super-2 number, since 2×12222320031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12222319986 and 12222320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222322031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177406 + ... + 236468.

It is an arithmetic number, because the mean of its divisors is an integer number (1471294084).

Almost surely, 2^12222320031 is an apocalyptic number.

12222320031 is a deficient number, since it is larger than the sum of its proper divisors (5433208977).

12222320031 is a wasteful number, since it uses less digits than its factorization.

12222320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82062 (or 82059 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12222320031 its reverse (13002322221), we get a palindrome (25224642252).

The spelling of 12222320031 in words is "twelve billion, two hundred twenty-two million, three hundred twenty thousand, thirty-one".