12889229922 has 32 divisors (see below), whose sum is σ = 29070244800. Its totient is φ = 4232283264.

The previous prime is 12889229921. The next prime is 12889229929. The reversal of 12889229922 is 22992298821.

It is a happy number.

It is a super-2 number, since 2×12889229922² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (12889229921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1777647 + ... + 1784882.

It is an arithmetic number, because the mean of its divisors is an integer number (908445150).

Almost surely, 2^12889229922 is an apocalyptic number.

12889229922 is an abundant number, since it is smaller than the sum of its proper divisors (16181014878).

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

12889229922 is a wasteful number, since it uses less digits than its factorization.

12889229922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562607 (or 3562601 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The spelling of 12889229922 in words is "twelve billion, eight hundred eighty-nine million, two hundred twenty-nine thousand, nine hundred twenty-two".