22224112400 has 60 divisors (see below), whose sum is σ = 61021070592. Its totient is φ = 7619694720.

The previous prime is 22224112373. The next prime is 22224112447. The reversal of 22224112400 is 421142222.

It is a super-2 number, since 2×22224112400² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3965792 + ... + 3971391.

Almost surely, 2^22224112400 is an apocalyptic number.

22224112400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22224112400 is an abundant number, since it is smaller than the sum of its proper divisors (38796958192).

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

22224112400 is a wasteful number, since it uses less digits than its factorization.

22224112400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7937208 (or 7937197 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22224112400 its reverse (421142222), we get a palindrome (22645254622).

The spelling of 22224112400 in words is "twenty-two billion, two hundred twenty-four million, one hundred twelve thousand, four hundred".