112120209980 has 24 divisors (see below), whose sum is σ = 239894942112. Its totient is φ = 44001893312.

The previous prime is 112120209961. The next prime is 112120209991. The reversal of 112120209980 is 89902021211.

It is a self number, because there is not a number n which added to its sum of digits gives 112120209980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52885832 + ... + 52887951.

It is an arithmetic number, because the mean of its divisors is an integer number (9995622588).

Almost surely, 2^112120209980 is an apocalyptic number.

112120209980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112120209980 is an abundant number, since it is smaller than the sum of its proper divisors (127774732132).

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

112120209980 is a wasteful number, since it uses less digits than its factorization.

112120209980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105773845 (or 105773843 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 112120209980 in words is "one hundred twelve billion, one hundred twenty million, two hundred nine thousand, nine hundred eighty".