2111120999956 has 12 divisors (see below), whose sum is σ = 3711971048800. Its totient is φ = 1050557843160.

The previous prime is 2111120999909. The next prime is 2111121000049. The reversal of 2111120999956 is 6599990211112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2111120999897 and 2111120999906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250663256 + ... + 1250664943.

Almost surely, 2^{2111120999956} is an apocalyptic number.

It is an amenable number.

2111120999956 is a deficient number, since it is larger than the sum of its proper divisors (1600850048844).

2111120999956 is a wasteful number, since it uses less digits than its factorization.

2111120999956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501328414 (or 2501328412 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 55.

The spelling of 2111120999956 in words is "two trillion, one hundred eleven billion, one hundred twenty million, nine hundred ninety-nine thousand, nine hundred fifty-six".