12111120120111 has 16 divisors (see below), whose sum is σ = 16177492233216. Its totient is φ = 8059426339136.

The previous prime is 12111120120053. The next prime is 12111120120173. The reversal of 12111120120111 is 11102102111121.

12111120120111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12111120120111 - 2¹⁹ = 12111119595823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111120120191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2407291 + ... + 5478803.

It is an arithmetic number, because the mean of its divisors is an integer number (1011093264576).

Almost surely, 2^{12111120120111} is an apocalyptic number.

12111120120111 is a deficient number, since it is larger than the sum of its proper divisors (4066372113105).

12111120120111 is a wasteful number, since it uses less digits than its factorization.

12111120120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073902.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12111120120111 its reverse (11102102111121), we get a palindrome (23213222231232).

The spelling of 12111120120111 in words is "twelve trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty thousand, one hundred eleven".