99221323012 has 12 divisors (see below), whose sum is σ = 198442646080. Its totient is φ = 42523424136.

The previous prime is 99221322983. The next prime is 99221323027. The reversal of 99221323012 is 21032312299.

99221323012 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1771809312 + ... + 1771809367.

Almost surely, 2^99221323012 is an apocalyptic number.

It is an amenable number.

99221323012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99221323012 is a wasteful number, since it uses less digits than its factorization.

99221323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543618690 (or 3543618688 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 99221323012 in words is "ninety-nine billion, two hundred twenty-one million, three hundred twenty-three thousand, twelve".