112012120209 has 32 divisors (see below), whose sum is σ = 170039347200. Its totient is φ = 64923541760.

The previous prime is 112012120159. The next prime is 112012120289. The reversal of 112012120209 is 902021210211.

It is not a de Polignac number, because 112012120209 - 2⁷ = 112012120081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112012120289) 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, 7186777 + ... + 7202345.

It is an arithmetic number, because the mean of its divisors is an integer number (5313729600).

Almost surely, 2^112012120209 is an apocalyptic number.

It is an amenable number.

112012120209 is a deficient number, since it is larger than the sum of its proper divisors (58027226991).

112012120209 is a wasteful number, since it uses less digits than its factorization.

112012120209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25085.

The product of its (nonzero) digits is 144, while the sum is 21.

It can be divided in two parts, 112012 and 120209, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 112012120209 in words is "one hundred twelve billion, twelve million, one hundred twenty thousand, two hundred nine".