2112188877 has 24 divisors (see below), whose sum is σ = 3197935104. Its totient is φ = 1340833824.

The previous prime is 2112188857. The next prime is 2112188893. The reversal of 2112188877 is 7788812112.

It is a happy number.

It is not a de Polignac number, because 2112188877 - 2¹⁴ = 2112172493 is a prime.

It is a super-2 number, since 2×2112188877² = 8922683704245042258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112188857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23283 + ... + 69039.

It is an arithmetic number, because the mean of its divisors is an integer number (133247296).

Almost surely, 2^2112188877 is an apocalyptic number.

It is an amenable number.

2112188877 is a deficient number, since it is larger than the sum of its proper divisors (1085746227).

2112188877 is a wasteful number, since it uses less digits than its factorization.

2112188877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46009 (or 46006 counting only the distinct ones).

The product of its digits is 100352, while the sum is 45.

The square root of 2112188877 is about 45958.5560804514. The cubic root of 2112188877 is about 1283.0519776677.

The spelling of 2112188877 in words is "two billion, one hundred twelve million, one hundred eighty-eight thousand, eight hundred seventy-seven".