22312012321100 has 72 divisors (see below), whose sum is σ = 48586885292400. Its totient is φ = 8893507726080.

The previous prime is 22312012321099. The next prime is 22312012321111. The reversal of 22312012321100 is 112321021322.

It is a super-3 number, since 3×22312012321100³ (a number of 41 digits) contains 333 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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380079551 + ... + 380138249.

Almost surely, 2^{22312012321100} is an apocalyptic number.

22312012321100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22312012321100 is an abundant number, since it is smaller than the sum of its proper divisors (26274872971300).

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

22312012321100 is a wasteful number, since it uses less digits than its factorization.

22312012321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71979 (or 71972 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22312012321100 its reverse (112321021322), we get a palindrome (22424333342422).

The spelling of 22312012321100 in words is "twenty-two trillion, three hundred twelve billion, twelve million, three hundred twenty-one thousand, one hundred".