2111217171112 has 32 divisors (see below), whose sum is σ = 4533850379520. Its totient is φ = 902844642240.

The previous prime is 2111217171109. The next prime is 2111217171139. The reversal of 2111217171112 is 2111717121112.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40863888 + ... + 40915519.

It is an arithmetic number, because the mean of its divisors is an integer number (141682824360).

Almost surely, 2^{2111217171112} is an apocalyptic number.

It is an amenable number.

2111217171112 is an abundant number, since it is smaller than the sum of its proper divisors (2422633208408).

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

2111217171112 is a wasteful number, since it uses less digits than its factorization.

2111217171112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81779881 (or 81779877 counting only the distinct ones).

The product of its digits is 392, while the sum is 28.

The spelling of 2111217171112 in words is "two trillion, one hundred eleven billion, two hundred seventeen million, one hundred seventy-one thousand, one hundred twelve".