99330021812 has 48 divisors (see below), whose sum is σ = 206683373568. Its totient is φ = 40872353760.

The previous prime is 99330021809. The next prime is 99330021881. The reversal of 99330021812 is 21812003399.

It is a congruent number.

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, 340298 + ... + 560769.

It is an arithmetic number, because the mean of its divisors is an integer number (4305903616).

Almost surely, 2^99330021812 is an apocalyptic number.

It is an amenable number.

99330021812 is an abundant number, since it is smaller than the sum of its proper divisors (107353351756).

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

99330021812 is a wasteful number, since it uses less digits than its factorization.

99330021812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901236 (or 901234 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 99330021812 in words is "ninety-nine billion, three hundred thirty million, twenty-one thousand, eight hundred twelve".