12011102112111 has 4 divisors (see below), whose sum is σ = 16014802816152. Its totient is φ = 8007401408072.

The previous prime is 12011102112101. The next prime is 12011102112169. The reversal of 12011102112111 is 11121120111021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12011102112111 - 2¹⁰ = 12011102111087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011102112101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001850352016 + ... + 2001850352021.

It is an arithmetic number, because the mean of its divisors is an integer number (4003700704038).

Almost surely, 2^{12011102112111} is an apocalyptic number.

12011102112111 is a deficient number, since it is larger than the sum of its proper divisors (4003700704041).

12011102112111 is an equidigital number, since it uses as much as digits as its factorization.

12011102112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003700704040.

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

Adding to 12011102112111 its reverse (11121120111021), we get a palindrome (23132222223132).

The spelling of 12011102112111 in words is "twelve trillion, eleven billion, one hundred two million, one hundred twelve thousand, one hundred eleven".