12112112111101 has 16 divisors (see below), whose sum is σ = 12419513308800. Its totient is φ = 11808570932928.

The previous prime is 12112112111089. The next prime is 12112112111129. The reversal of 12112112111101 is 10111121121121.

It is a cyclic number.

It is not a de Polignac number, because 12112112111101 - 2¹⁷ = 12112111980029 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 (12112112112101) 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, 11280315 + ... + 12307303.

It is an arithmetic number, because the mean of its divisors is an integer number (776219581800).

Almost surely, 2^{12112112111101} is an apocalyptic number.

It is an amenable number.

12112112111101 is a deficient number, since it is larger than the sum of its proper divisors (307401197699).

12112112111101 is a wasteful number, since it uses less digits than its factorization.

12112112111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028868.

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

Adding to 12112112111101 its reverse (10111121121121), we get a palindrome (22223233232222).

The spelling of 12112112111101 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, one hundred eleven thousand, one hundred one".