112122009979 has 4 divisors (see below), whose sum is σ = 128139439984. Its totient is φ = 96104579976.

The previous prime is 112122009953. The next prime is 112122009983. The reversal of 112122009979 is 979900221211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979900221211 = 17 ⋅57641189483.

It is a cyclic number.

It is not a de Polignac number, because 112122009979 - 2¹³ = 112122001787 is a prime.

It is a super-3 number, since 3×112122009979³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112122009949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8008714992 + ... + 8008715005.

It is an arithmetic number, because the mean of its divisors is an integer number (32034859996).

Almost surely, 2^112122009979 is an apocalyptic number.

112122009979 is a deficient number, since it is larger than the sum of its proper divisors (16017430005).

112122009979 is an equidigital number, since it uses as much as digits as its factorization.

112122009979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16017430004.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 112122009979 in words is "one hundred twelve billion, one hundred twenty-two million, nine thousand, nine hundred seventy-nine".