112221979862165 has 32 divisors (see below), whose sum is σ = 139717151368704. Its totient is φ = 86481118955520.

The previous prime is 112221979862149. The next prime is 112221979862233. The reversal of 112221979862165 is 561268979122211.

It is a happy number.

It is not a de Polignac number, because 112221979862165 - 2⁴ = 112221979862149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112221979862098 and 112221979862107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9473819 + ... + 17725608.

It is an arithmetic number, because the mean of its divisors is an integer number (4366160980272).

Almost surely, 2^{112221979862165} is an apocalyptic number.

It is an amenable number.

112221979862165 is a deficient number, since it is larger than the sum of its proper divisors (27495171506539).

112221979862165 is a wasteful number, since it uses less digits than its factorization.

112221979862165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27199757.

The product of its digits is 13063680, while the sum is 62.

The spelling of 112221979862165 in words is "one hundred twelve trillion, two hundred twenty-one billion, nine hundred seventy-nine million, eight hundred sixty-two thousand, one hundred sixty-five".