12212303031 has 36 divisors (see below), whose sum is σ = 18548137608. Its totient is φ = 7742018592.

The previous prime is 12212303027. The next prime is 12212303057. The reversal of 12212303031 is 13030321221.

It is not a de Polignac number, because 12212303031 - 2² = 12212303027 is a prime.

It is a super-2 number, since 2×12212303031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12212302995 and 12212303013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212303231) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 816240 + ... + 831066.

Almost surely, 2^12212303031 is an apocalyptic number.

12212303031 is a deficient number, since it is larger than the sum of its proper divisors (6335834577).

12212303031 is a wasteful number, since it uses less digits than its factorization.

12212303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15052 (or 15026 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12212303031 its reverse (13030321221), we get a palindrome (25242624252).

The spelling of 12212303031 in words is "twelve billion, two hundred twelve million, three hundred three thousand, thirty-one".