2112665192 has 32 divisors (see below), whose sum is σ = 4343112000. Its totient is φ = 955468800.

The previous prime is 2112665173. The next prime is 2112665197. The reversal of 2112665192 is 2915662112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2112665197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42809 + ... + 77832.

It is an arithmetic number, because the mean of its divisors is an integer number (135722250).

Almost surely, 2^2112665192 is an apocalyptic number.

2112665192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2112665192 is an abundant number, since it is smaller than the sum of its proper divisors (2230446808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112665192 is a wasteful number, since it uses less digits than its factorization.

2112665192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120857 (or 120853 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 2112665192 is about 45963.7377940480. The cubic root of 2112665192 is about 1283.1484164815.

The spelling of 2112665192 in words is "two billion, one hundred twelve million, six hundred sixty-five thousand, one hundred ninety-two".