2112188851 has 8 divisors (see below), whose sum is σ = 2261565360. Its totient is φ = 1965604608.

The previous prime is 2112188843. The next prime is 2112188857. The reversal of 2112188851 is 1588812112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112188851 - 2³ = 2112188843 is a prime.

It is a super-2 number, since 2×2112188851² = 8922683484577400402, 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 2112188851.

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 7 ways as a sum of consecutive naturals, for example, 696501 + ... + 699526.

It is an arithmetic number, because the mean of its divisors is an integer number (282695670).

Almost surely, 2^2112188851 is an apocalyptic number.

2112188851 is a deficient number, since it is larger than the sum of its proper divisors (149376509).

2112188851 is a wasteful number, since it uses less digits than its factorization.

2112188851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396133.

The product of its digits is 10240, while the sum is 37.

The square root of 2112188851 is about 45958.5557975879. Note that the first 3 decimals coincide. The cubic root of 2112188851 is about 1283.0519724031.

The spelling of 2112188851 in words is "two billion, one hundred twelve million, one hundred eighty-eight thousand, eight hundred fifty-one".