2111120211109 has 24 divisors (see below), whose sum is σ = 2706204732000. Its totient is φ = 1631491805664.

The previous prime is 2111120211043. The next prime is 2111120211143. The reversal of 2111120211109 is 9011120211112.

It is a happy number.

It is not a de Polignac number, because 2111120211109 - 2²⁷ = 2110985993381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111120211109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111120211709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38509359 + ... + 38564140.

It is an arithmetic number, because the mean of its divisors is an integer number (112758530500).

Almost surely, 2^{2111120211109} is an apocalyptic number.

It is an amenable number.

2111120211109 is a deficient number, since it is larger than the sum of its proper divisors (595084520891).

2111120211109 is a wasteful number, since it uses less digits than its factorization.

2111120211109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77073569 (or 77073562 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 2111120211109 in words is "two trillion, one hundred eleven billion, one hundred twenty million, two hundred eleven thousand, one hundred nine".