9998883021512 has 96 divisors (see below), whose sum is σ = 23662708023360. Its totient is φ = 3877205270400.

The previous prime is 9998883021473. The next prime is 9998883021557. The reversal of 9998883021512 is 2151203888999.

It is a super-2 number, since 2×9998883021512² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2067023 + ... + 4926494.

It is an arithmetic number, because the mean of its divisors is an integer number (246486541910).

Almost surely, 2^{9998883021512} is an apocalyptic number.

It is an amenable number.

9998883021512 is an abundant number, since it is smaller than the sum of its proper divisors (13663825001848).

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

9998883021512 is a wasteful number, since it uses less digits than its factorization.

9998883021512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993763 (or 6993748 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 65.

The spelling of 9998883021512 in words is "nine trillion, nine hundred ninety-eight billion, eight hundred eighty-three million, twenty-one thousand, five hundred twelve".