13122222112 has 12 divisors (see below), whose sum is σ = 25834374846. Its totient is φ = 6561111040.

The previous prime is 13122222109. The next prime is 13122222173. The reversal of 13122222112 is 21122222131.

It can be written as a sum of positive squares in only one way, i.e., 9526540816 + 3595681296 = 97604^2 + 59964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13122222112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205034689 + ... + 205034752.

Almost surely, 2^13122222112 is an apocalyptic number.

It is an amenable number.

13122222112 is a deficient number, since it is larger than the sum of its proper divisors (12712152734).

13122222112 is an equidigital number, since it uses as much as digits as its factorization.

13122222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410069451 (or 410069443 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

Adding to 13122222112 its sum of digits (19), we get a palindrome (13122222131).

Adding to 13122222112 its reverse (21122222131), we get a palindrome (34244444243).

The spelling of 13122222112 in words is "thirteen billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".