2112100011982 has 16 divisors (see below), whose sum is σ = 3178047171312. Its totient is φ = 1052751934080.

The previous prime is 2112100011961. The next prime is 2112100011997. The reversal of 2112100011982 is 2891100012112.

It is a super-2 number, since 2×2112100011982² (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 2112100011982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4133548 + ... + 4616320.

It is an arithmetic number, because the mean of its divisors is an integer number (198627948207).

Almost surely, 2^{2112100011982} is an apocalyptic number.

2112100011982 is a deficient number, since it is larger than the sum of its proper divisors (1065947159330).

2112100011982 is a wasteful number, since it uses less digits than its factorization.

2112100011982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489603.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 2112100011982 in words is "two trillion, one hundred twelve billion, one hundred million, eleven thousand, nine hundred eighty-two".