12012120010111 has 16 divisors (see below), whose sum is σ = 13033731166848. Its totient is φ = 11004491462400.

The previous prime is 12012120010109. The next prime is 12012120010127. The reversal of 12012120010111 is 11101002121021.

It is a happy number.

It is not a de Polignac number, because 12012120010111 - 2¹ = 12012120010109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012120010091 and 12012120010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012120010151) 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, 6501381 + ... + 8142001.

It is an arithmetic number, because the mean of its divisors is an integer number (814608197928).

Almost surely, 2^{12012120010111} is an apocalyptic number.

12012120010111 is a deficient number, since it is larger than the sum of its proper divisors (1021611156737).

12012120010111 is a wasteful number, since it uses less digits than its factorization.

12012120010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644882.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12012120010111 its reverse (11101002121021), we get a palindrome (23113122131132).

The spelling of 12012120010111 in words is "twelve trillion, twelve billion, one hundred twenty million, ten thousand, one hundred eleven".