22144321344 has 56 divisors (see below), whose sum is σ = 58615710048. Its totient is φ = 7378224640.

The previous prime is 22144321337. The next prime is 22144321369. The reversal of 22144321344 is 44312344122.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 438994 + ... + 486830.

It is an arithmetic number, because the mean of its divisors is an integer number (1046709108).

Almost surely, 2^22144321344 is an apocalyptic number.

22144321344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22144321344 is an abundant number, since it is smaller than the sum of its proper divisors (36471388704).

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

22144321344 is a wasteful number, since it uses less digits than its factorization.

22144321344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50263 (or 50253 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

Adding to 22144321344 its reverse (44312344122), we get a palindrome (66456665466).

The spelling of 22144321344 in words is "twenty-two billion, one hundred forty-four million, three hundred twenty-one thousand, three hundred forty-four".