2120112111 has 16 divisors (see below), whose sum is σ = 3048645600. Its totient is φ = 1302806400.

The previous prime is 2120112107. The next prime is 2120112161. The reversal of 2120112111 is 1112110212.

It is not a de Polignac number, because 2120112111 - 2² = 2120112107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120112161) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11436 + ... + 66113.

It is an arithmetic number, because the mean of its divisors is an integer number (190540350).

Almost surely, 2^2120112111 is an apocalyptic number.

2120112111 is a deficient number, since it is larger than the sum of its proper divisors (928533489).

2120112111 is a wasteful number, since it uses less digits than its factorization.

2120112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78266.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 2120112111 is about 46044.6751644531. The cubic root of 2120112111 is about 1284.6543021781.

Adding to 2120112111 its reverse (1112110212), we get a palindrome (3232222323).

The spelling of 2120112111 in words is "two billion, one hundred twenty million, one hundred twelve thousand, one hundred eleven".