12012120112111 has 8 divisors (see below), whose sum is σ = 13741689240864. Its totient is φ = 10285938975840.

The previous prime is 12012120112049. The next prime is 12012120112123. The reversal of 12012120112111 is 11121102121021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012120112111 - 2²³ = 12012111723503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012120112511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846990520 + ... + 847004701.

It is an arithmetic number, because the mean of its divisors is an integer number (1717711155108).

Almost surely, 2^{12012120112111} is an apocalyptic number.

12012120112111 is a deficient number, since it is larger than the sum of its proper divisors (1729569128753).

12012120112111 is a wasteful number, since it uses less digits than its factorization.

12012120112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693996241.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 12012120112111 its reverse (11121102121021), we get a palindrome (23133222233132).

The spelling of 12012120112111 in words is "twelve trillion, twelve billion, one hundred twenty million, one hundred twelve thousand, one hundred eleven".