13222118 has 16 divisors (see below), whose sum is σ = 24410400. Its totient is φ = 5230656.

The previous prime is 13222109. The next prime is 13222123. The reversal of 13222118 is 81122231.

It is a self number, because there is not a number n which added to its sum of digits gives 13222118.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36143 + ... + 36506.

It is an arithmetic number, because the mean of its divisors is an integer number (1525650).

Almost surely, 2^13222118 is an apocalyptic number.

13222118 is a deficient number, since it is larger than the sum of its proper divisors (11188282).

13222118 is a wasteful number, since it uses less digits than its factorization.

13222118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72671.

The product of its digits is 192, while the sum is 20.

The square root of 13222118 is about 3636.2230404638. The cubic root of 13222118 is about 236.4650768547.

Adding to 13222118 its reverse (81122231), we get a palindrome (94344349).

The spelling of 13222118 in words is "thirteen million, two hundred twenty-two thousand, one hundred eighteen".