22120131144 has 32 divisors (see below), whose sum is σ = 55671480000. Its totient is φ = 7323890112.

The previous prime is 22120131139. The next prime is 22120131169. The reversal of 22120131144 is 44113102122.

It is a self number, because there is not a number n which added to its sum of digits gives 22120131144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3089284 + ... + 3096435.

It is an arithmetic number, because the mean of its divisors is an integer number (1739733750).

Almost surely, 2^22120131144 is an apocalyptic number.

22120131144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22120131144 is an abundant number, since it is smaller than the sum of its proper divisors (33551348856).

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

22120131144 is a wasteful number, since it uses less digits than its factorization.

22120131144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185877 (or 6185873 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 22120131144 its reverse (44113102122), we get a palindrome (66233233266).

The spelling of 22120131144 in words is "twenty-two billion, one hundred twenty million, one hundred thirty-one thousand, one hundred forty-four".