12011112101111 has 32 divisors (see below), whose sum is σ = 12333045144576. Its totient is φ = 11694497472000.

The previous prime is 12011112101057. The next prime is 12011112101119. The reversal of 12011112101111 is 11110121111021.

It is a cyclic number.

It is not a de Polignac number, because 12011112101111 - 2¹⁸ = 12011111838967 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 (12011112101119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4496858306 + ... + 4496860976.

It is an arithmetic number, because the mean of its divisors is an integer number (385407660768).

Almost surely, 2^{12011112101111} is an apocalyptic number.

12011112101111 is a deficient number, since it is larger than the sum of its proper divisors (321933043465).

12011112101111 is a wasteful number, since it uses less digits than its factorization.

12011112101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 12011112101111 its reverse (11110121111021), we get a palindrome (23121233212132).

The spelling of 12011112101111 in words is "twelve trillion, eleven billion, one hundred twelve million, one hundred one thousand, one hundred eleven".