12220031324 has 24 divisors (see below), whose sum is σ = 22646378160. Its totient is φ = 5749744896.

The previous prime is 12220031303. The next prime is 12220031359. The reversal of 12220031324 is 42313002221.

It is a junction number, because it is equal to n+sod(n) for n = 12220031296 and 12220031305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887162 + ... + 900830.

It is an arithmetic number, because the mean of its divisors is an integer number (943599090).

Almost surely, 2^12220031324 is an apocalyptic number.

It is an amenable number.

12220031324 is a deficient number, since it is larger than the sum of its proper divisors (10426346836).

12220031324 is a wasteful number, since it uses less digits than its factorization.

12220031324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26837 (or 26835 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12220031324 its reverse (42313002221), we get a palindrome (54533033545).

The spelling of 12220031324 in words is "twelve billion, two hundred twenty million, thirty-one thousand, three hundred twenty-four".