22144121868 has 48 divisors (see below), whose sum is σ = 59682559104. Its totient is φ = 6315613440.

The previous prime is 22144121821. The next prime is 22144121869. The reversal of 22144121868 is 86812144122.

It is not an unprimeable number, because it can be changed into a prime (22144121869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4931830 + ... + 4936317.

It is an arithmetic number, because the mean of its divisors is an integer number (1243386648).

Almost surely, 2^22144121868 is an apocalyptic number.

It is an amenable number.

22144121868 is an abundant number, since it is smaller than the sum of its proper divisors (37538437236).

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

22144121868 is a wasteful number, since it uses less digits than its factorization.

22144121868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868182 (or 9868180 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The spelling of 22144121868 in words is "twenty-two billion, one hundred forty-four million, one hundred twenty-one thousand, eight hundred sixty-eight".