13223121112 has 16 divisors (see below), whose sum is σ = 24838686360. Its totient is φ = 6599471424.

The previous prime is 13223121089. The next prime is 13223121173. The reversal of 13223121112 is 21112132231.

It is a self number, because there is not a number n which added to its sum of digits gives 13223121112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506493 + ... + 1515244.

Almost surely, 2^13223121112 is an apocalyptic number.

It is an amenable number.

13223121112 is a deficient number, since it is larger than the sum of its proper divisors (11615565248).

13223121112 is a wasteful number, since it uses less digits than its factorization.

13223121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022290 (or 3022286 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 13223121112 its reverse (21112132231), we get a palindrome (34335253343).

The spelling of 13223121112 in words is "thirteen billion, two hundred twenty-three million, one hundred twenty-one thousand, one hundred twelve".