99019912 has 16 divisors (see below), whose sum is σ = 186264000. Its totient is φ = 49349520.

The previous prime is 99019909. The next prime is 99019919. The reversal of 99019912 is 21991099.

It is not an unprimeable number, because it can be changed into a prime (99019919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17412 + ... + 22387.

It is an arithmetic number, because the mean of its divisors is an integer number (11641500).

Almost surely, 2^99019912 is an apocalyptic number.

It is an amenable number.

99019912 is a deficient number, since it is larger than the sum of its proper divisors (87244088).

99019912 is a wasteful number, since it uses less digits than its factorization.

99019912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40116 (or 40112 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 99019912 is about 9950.8749364063. The cubic root of 99019912 is about 462.6375137235.

It can be divided in two parts, 990 and 19912, that added together give a palindrome (20902).

The spelling of 99019912 in words is "ninety-nine million, nineteen thousand, nine hundred twelve".