101188898172 has 36 divisors (see below), whose sum is σ = 255834670000. Its totient is φ = 33722825472.

The previous prime is 101188898141. The next prime is 101188898201. The reversal of 101188898172 is 271898881101.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×101188898172² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101173 + ... + 461100.

Almost surely, 2^101188898172 is an apocalyptic number.

101188898172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101188898172 is an abundant number, since it is smaller than the sum of its proper divisors (154645771828).

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

101188898172 is a wasteful number, since it uses less digits than its factorization.

101188898172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567282 (or 567277 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 54.

The spelling of 101188898172 in words is "one hundred one billion, one hundred eighty-eight million, eight hundred ninety-eight thousand, one hundred seventy-two".