90221607912 has 64 divisors (see below), whose sum is σ = 236618236800. Its totient is φ = 28627854080.

The previous prime is 90221607907. The next prime is 90221607989. The reversal of 90221607912 is 21970612209.

It is a super-3 number, since 3×90221607912³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 863463 + ... + 962294.

It is an arithmetic number, because the mean of its divisors is an integer number (3697159950).

Almost surely, 2^90221607912 is an apocalyptic number.

It is an amenable number.

90221607912 is an abundant number, since it is smaller than the sum of its proper divisors (146396628888).

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

90221607912 is a wasteful number, since it uses less digits than its factorization.

90221607912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825866 (or 1825862 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 90221607912 in words is "ninety billion, two hundred twenty-one million, six hundred seven thousand, nine hundred twelve".