12112110211111 has 8 divisors (see below), whose sum is σ = 12156037347344. Its totient is φ = 12068184522240.

The previous prime is 12112110211109. The next prime is 12112110211177. The reversal of 12112110211111 is 11111201121121.

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 12112110211111 - 2¹ = 12112110211109 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 (12112110211211) 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, 18111751 + ... + 18768583.

It is an arithmetic number, because the mean of its divisors is an integer number (1519504668418).

Almost surely, 2^{12112110211111} is an apocalyptic number.

12112110211111 is a deficient number, since it is larger than the sum of its proper divisors (43927136233).

12112110211111 is an equidigital number, since it uses as much as digits as its factorization.

12112110211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723681.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 12112110211111 its reverse (11111201121121), we get a palindrome (23223311332232).

The spelling of 12112110211111 in words is "twelve trillion, one hundred twelve billion, one hundred ten million, two hundred eleven thousand, one hundred eleven".