90110220101 has 16 divisors (see below), whose sum is σ = 102016791360. Its totient is φ = 78840827520.

The previous prime is 90110220091. The next prime is 90110220133. The reversal of 90110220101 is 10102201109.

It is a cyclic number.

It is not a de Polignac number, because 90110220101 - 2³⁰ = 89036478277 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90110220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90110220601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351395 + ... + 551088.

It is an arithmetic number, because the mean of its divisors is an integer number (6376049460).

Almost surely, 2^90110220101 is an apocalyptic number.

It is an amenable number.

90110220101 is a deficient number, since it is larger than the sum of its proper divisors (11906571259).

90110220101 is a wasteful number, since it uses less digits than its factorization.

90110220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902836.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 90110220101 in words is "ninety billion, one hundred ten million, two hundred twenty thousand, one hundred one".