22101695172 has 72 divisors (see below), whose sum is σ = 59867379936. Its totient is φ = 6850308864.

The previous prime is 22101695171. The next prime is 22101695219. The reversal of 22101695172 is 27159610122.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22101695171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166758 + ... + 268349.

It is an arithmetic number, because the mean of its divisors is an integer number (831491388).

Almost surely, 2^22101695172 is an apocalyptic number.

It is an amenable number.

22101695172 is an abundant number, since it is smaller than the sum of its proper divisors (37765684764).

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

22101695172 is a wasteful number, since it uses less digits than its factorization.

22101695172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435217 (or 435212 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 22101695172 in words is "twenty-two billion, one hundred one million, six hundred ninety-five thousand, one hundred seventy-two".