90089422201 has 3 divisors (see below), whose sum is σ = 90089722351. Its totient is φ = 90089122052.

The previous prime is 90089422187. The next prime is 90089422231. The reversal of 90089422201 is 10222498009.

The square root of 90089422201 is 300149.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 74147834601 + 15941587600 = 272301^2 + 126260^2 .

It is not a de Polignac number, because 90089422201 - 2⁵ = 90089422169 is a prime.

It is a super-2 number, since 2×90089422201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90089422231) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 150075 + ... + 450223.

Almost surely, 2^90089422201 is an apocalyptic number.

90089422201 is the 300149-th square number.

90089422201 is the 150075-th centered octagonal number.

It is an amenable number.

90089422201 is a deficient number, since it is larger than the sum of its proper divisors (300150).

90089422201 is an frugal number, since it uses more digits than its factorization.

90089422201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600298 (or 300149 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 90089422201 in words is "ninety billion, eighty-nine million, four hundred twenty-two thousand, two hundred one".