22865121371200 has 42 divisors (see below), whose sum is σ = 56262489277946. Its totient is φ = 9146048547840.

The previous prime is 22865121371179. The next prime is 22865121371203. The reversal of 22865121371200 is 217312156822.

It can be written as a sum of positive squares in 3 ways, for example, as 1392796508224 + 21472324862976 = 1180168^2 + 4633824^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (22865121371203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7145348829 + ... + 7145352028.

Almost surely, 2^{22865121371200} is an apocalyptic number.

22865121371200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22865121371200 is an abundant number, since it is smaller than the sum of its proper divisors (33397367906746).

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

22865121371200 is a wasteful number, since it uses less digits than its factorization.

22865121371200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14290700879 (or 14290700864 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 22865121371200 in words is "twenty-two trillion, eight hundred sixty-five billion, one hundred twenty-one million, three hundred seventy-one thousand, two hundred".