112199108921 has 16 divisors (see below), whose sum is σ = 124391116800. Its totient is φ = 100722167568.

The previous prime is 112199108891. The next prime is 112199108927. The reversal of 112199108921 is 129801991211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 112199108921 - 2³⁰ = 111125367097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112199108927) 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 15 ways as a sum of consecutive naturals, for example, 1153001 + ... + 1246518.

It is an arithmetic number, because the mean of its divisors is an integer number (7774444800).

Almost surely, 2^112199108921 is an apocalyptic number.

It is an amenable number.

112199108921 is a deficient number, since it is larger than the sum of its proper divisors (12192007879).

112199108921 is a wasteful number, since it uses less digits than its factorization.

112199108921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399668.

The product of its (nonzero) digits is 23328, while the sum is 44.

The spelling of 112199108921 in words is "one hundred twelve billion, one hundred ninety-nine million, one hundred eight thousand, nine hundred twenty-one".