9899010021112 has 8 divisors (see below), whose sum is σ = 18560643789600. Its totient is φ = 4949505010552.

The previous prime is 9899010021107. The next prime is 9899010021133. The reversal of 9899010021112 is 2111200109989.

It is a happy number.

9899010021112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618688126312 + ... + 618688126327.

It is an arithmetic number, because the mean of its divisors is an integer number (2320080473700).

Almost surely, 2^{9899010021112} is an apocalyptic number.

It is an amenable number.

9899010021112 is a deficient number, since it is larger than the sum of its proper divisors (8661633768488).

9899010021112 is a wasteful number, since it uses less digits than its factorization.

9899010021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237376252645 (or 1237376252641 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 43.

The spelling of 9899010021112 in words is "nine trillion, eight hundred ninety-nine billion, ten million, twenty-one thousand, one hundred twelve".