22117065400 has 24 divisors (see below), whose sum is σ = 51422177520. Its totient is φ = 8846826080.

The previous prime is 22117065389. The next prime is 22117065403. The reversal of 22117065400 is 456071122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22117065403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55292464 + ... + 55292863.

It is an arithmetic number, because the mean of its divisors is an integer number (2142590730).

Almost surely, 2^22117065400 is an apocalyptic number.

22117065400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22117065400 is an abundant number, since it is smaller than the sum of its proper divisors (29305112120).

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

22117065400 is a wasteful number, since it uses less digits than its factorization.

22117065400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110585343 (or 110585334 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 22117065400 in words is "twenty-two billion, one hundred seventeen million, sixty-five thousand, four hundred".