9999990011112 has 128 divisors (see below), whose sum is σ = 26708447208960. Its totient is φ = 3109065523200.

The previous prime is 9999990011087. The next prime is 9999990011147. The reversal of 9999990011112 is 2111100999999.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640976112 + ... + 640991712.

It is an arithmetic number, because the mean of its divisors is an integer number (208659743820).

Almost surely, 2^{9999990011112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9999990011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13354223604480).

9999990011112 is an abundant number, since it is smaller than the sum of its proper divisors (16708457197848).

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

9999990011112 is a wasteful number, since it uses less digits than its factorization.

9999990011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29643 (or 29639 counting only the distinct ones).

The product of its (nonzero) digits is 1062882, while the sum is 60.

The spelling of 9999990011112 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred ninety million, eleven thousand, one hundred twelve".