2112297881 has 16 divisors (see below), whose sum is σ = 2195709120. Its totient is φ = 2030733120.

The previous prime is 2112297857. The next prime is 2112297907. The reversal of 2112297881 is 1887922112.

It is a cyclic number.

It is not a de Polignac number, because 2112297881 - 2²⁶ = 2045189017 is a prime.

It is a super-2 number, since 2×2112297881² = 8923604676154180322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112297581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1165466 + ... + 1167276.

It is an arithmetic number, because the mean of its divisors is an integer number (137231820).

Almost surely, 2^2112297881 is an apocalyptic number.

It is an amenable number.

2112297881 is a deficient number, since it is larger than the sum of its proper divisors (83411239).

2112297881 is a wasteful number, since it uses less digits than its factorization.

2112297881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296.

The product of its digits is 32256, while the sum is 41.

The square root of 2112297881 is about 45959.7419596760. The cubic root of 2112297881 is about 1283.0740488302.

The spelling of 2112297881 in words is "two billion, one hundred twelve million, two hundred ninety-seven thousand, eight hundred eighty-one".