111012198928 has 40 divisors (see below), whose sum is σ = 231928593120. Its totient is φ = 51302165760.

The previous prime is 111012198919. The next prime is 111012198929. The reversal of 111012198928 is 829891210111.

It is not an unprimeable number, because it can be changed into a prime (111012198929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4440850 + ... + 4465777.

It is an arithmetic number, because the mean of its divisors is an integer number (5798214828).

Almost surely, 2^111012198928 is an apocalyptic number.

It is an amenable number.

111012198928 is an abundant number, since it is smaller than the sum of its proper divisors (120916394192).

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

111012198928 is a wasteful number, since it uses less digits than its factorization.

111012198928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8906695 (or 8906689 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 43.

The spelling of 111012198928 in words is "one hundred eleven billion, twelve million, one hundred ninety-eight thousand, nine hundred twenty-eight".