99095171220 has 36 divisors (see below), whose sum is σ = 300588686580. Its totient is φ = 26425378944.

The previous prime is 99095171173. The next prime is 99095171221. The reversal of 99095171220 is 2217159099.

99095171220 is a `hidden beast` number, since 9 + 9 + 0 + 9 + 517 + 122 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 73149693444 + 25945477776 = 270462^2 + 161076^2 .

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

It is a super-2 number, since 2×99095171220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99095171221) by changing a digit.

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, 275264185 + ... + 275264544.

Almost surely, 2^99095171220 is an apocalyptic number.

99095171220 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

99095171220 is an abundant number, since it is smaller than the sum of its proper divisors (201493515360).

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

99095171220 is a wasteful number, since it uses less digits than its factorization.

99095171220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550528744 (or 550528739 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The spelling of 99095171220 in words is "ninety-nine billion, ninety-five million, one hundred seventy-one thousand, two hundred twenty".