90228122361 has 24 divisors (see below), whose sum is σ = 143618931456. Its totient is φ = 54233716320.

The previous prime is 90228122333. The next prime is 90228122423. The reversal of 90228122361 is 16322182209.

It is a happy number.

It is not a de Polignac number, because 90228122361 - 2⁵ = 90228122329 is a prime.

It is a super-2 number, since 2×90228122361² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90228122311) 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, 8962185 + ... + 8972246.

It is an arithmetic number, because the mean of its divisors is an integer number (5984122144).

Almost surely, 2^90228122361 is an apocalyptic number.

It is an amenable number.

90228122361 is a deficient number, since it is larger than the sum of its proper divisors (53390809095).

90228122361 is a wasteful number, since it uses less digits than its factorization.

90228122361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17934493 (or 17934490 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 90228122361 in words is "ninety billion, two hundred twenty-eight million, one hundred twenty-two thousand, three hundred sixty-one".