13222123112 has 32 divisors (see below), whose sum is σ = 27113447520. Its totient is φ = 5994901440.

The previous prime is 13222123093. The next prime is 13222123121. The reversal of 13222123112 is 21132122231.

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, 154298 + ... + 224169.

It is an arithmetic number, because the mean of its divisors is an integer number (847295235).

Almost surely, 2^13222123112 is an apocalyptic number.

It is an amenable number.

13222123112 is an abundant number, since it is smaller than the sum of its proper divisors (13891324408).

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

13222123112 is a wasteful number, since it uses less digits than its factorization.

13222123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378881 (or 378877 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 13222123112 its reverse (21132122231), we get a palindrome (34354245343).

The spelling of 13222123112 in words is "thirteen billion, two hundred twenty-two million, one hundred twenty-three thousand, one hundred twelve".