12013220322 has 40 divisors (see below), whose sum is σ = 27130515456. Its totient is φ = 3972869208.

The previous prime is 12013220281. The next prime is 12013220369. The reversal of 12013220322 is 22302231021.

12013220322 is a `hidden beast` number, since 1 + 20 + 1 + 322 + 0 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12013220295 and 12013220304.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 271378 + ... + 312525.

Almost surely, 2^12013220322 is an apocalyptic number.

12013220322 is an abundant number, since it is smaller than the sum of its proper divisors (15117295134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12013220322 is a wasteful number, since it uses less digits than its factorization.

12013220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584044 (or 584035 counting only the distinct ones).

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

Adding to 12013220322 its reverse (22302231021), we get a palindrome (34315451343).

The spelling of 12013220322 in words is "twelve billion, thirteen million, two hundred twenty thousand, three hundred twenty-two".