13121922 has 16 divisors (see below), whose sum is σ = 28629792. Its totient is φ = 3976320.

The previous prime is 13121921. The next prime is 13121971. The reversal of 13121922 is 22912131.

It is not an unprimeable number, because it can be changed into a prime (13121921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99343 + ... + 99474.

It is an arithmetic number, because the mean of its divisors is an integer number (1789362).

Almost surely, 2^13121922 is an apocalyptic number.

13121922 is an abundant number, since it is smaller than the sum of its proper divisors (15507870).

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

13121922 is a wasteful number, since it uses less digits than its factorization.

13121922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198833.

The product of its digits is 216, while the sum is 21.

The square root of 13121922 is about 3622.4193572804. The cubic root of 13121922 is about 235.8662581303.

It can be divided in two parts, 131 and 21922, that multiplied together give a palindrome (2871782).

The spelling of 13121922 in words is "thirteen million, one hundred twenty-one thousand, nine hundred twenty-two".