2112164911 has 4 divisors (see below), whose sum is σ = 2203998192. Its totient is φ = 2020331632.

The previous prime is 2112164893. The next prime is 2112164927. The reversal of 2112164911 is 1194612112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112164911 - 2⁹ = 2112164399 is a prime.

It is a super-2 number, since 2×2112164911² = 8922481222519275842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112164911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112164011) 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, 45916606 + ... + 45916651.

It is an arithmetic number, because the mean of its divisors is an integer number (550999548).

Almost surely, 2^2112164911 is an apocalyptic number.

2112164911 is a deficient number, since it is larger than the sum of its proper divisors (91833281).

2112164911 is an equidigital number, since it uses as much as digits as its factorization.

2112164911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91833280.

The product of its digits is 864, while the sum is 28.

The square root of 2112164911 is about 45958.2953448015. The cubic root of 2112164911 is about 1283.0471249230.

The spelling of 2112164911 in words is "two billion, one hundred twelve million, one hundred sixty-four thousand, nine hundred eleven".