99000111012 has 96 divisors (see below), whose sum is σ = 260363013120. Its totient is φ = 29014197120.

The previous prime is 99000111011. The next prime is 99000111013. The reversal of 99000111012 is 21011100099.

It is an interprime number because it is at equal distance from previous prime (99000111011) and next prime (99000111013).

It is not an unprimeable number, because it can be changed into a prime (99000111011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 754939 + ... + 876317.

It is an arithmetic number, because the mean of its divisors is an integer number (2712114720).

Almost surely, 2^99000111012 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 99000111012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130181506560).

99000111012 is an abundant number, since it is smaller than the sum of its proper divisors (161362902108).

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

99000111012 is a wasteful number, since it uses less digits than its factorization.

99000111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121601 (or 121599 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

It can be divided in two parts, 99000 and 111012, that added together give a palindrome (210012).

The spelling of 99000111012 in words is "ninety-nine billion, one hundred eleven thousand, twelve".