13222957442 has 18 divisors (see below), whose sum is σ = 21074205033. Its totient is φ = 6221267232.

The previous prime is 13222957441. The next prime is 13222957483. The reversal of 13222957442 is 24475922231.

It can be written as a sum of positive squares in 2 ways, for example, as 12101980081 + 1120977361 = 110009^2 + 33481^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=81311.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13222957442.

It is not an unprimeable number, because it can be changed into a prime (13222957441) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2762183 + ... + 2766965.

Almost surely, 2^13222957442 is an apocalyptic number.

13222957442 is a deficient number, since it is larger than the sum of its proper divisors (7851247591).

13222957442 is an frugal number, since it uses more digits than its factorization.

13222957442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9602 (or 4802 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The spelling of 13222957442 in words is "thirteen billion, two hundred twenty-two million, nine hundred fifty-seven thousand, four hundred forty-two".