2112091390968 has 64 divisors (see below), whose sum is σ = 5771271596160. Its totient is φ = 640174651776.

The previous prime is 2112091390919. The next prime is 2112091390973. The reversal of 2112091390968 is 8690931902112.

It is a super-2 number, since 2×2112091390968² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112091390968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50497930 + ... + 50539737.

It is an arithmetic number, because the mean of its divisors is an integer number (90176118690).

Almost surely, 2^{2112091390968} is an apocalyptic number.

It is an amenable number.

2112091390968 is an abundant number, since it is smaller than the sum of its proper divisors (3659180205192).

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

2112091390968 is a wasteful number, since it uses less digits than its factorization.

2112091390968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101037756 (or 101037752 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 51.

The spelling of 2112091390968 in words is "two trillion, one hundred twelve billion, ninety-one million, three hundred ninety thousand, nine hundred sixty-eight".