12112112211223 has 16 divisors (see below), whose sum is σ = 12646094098176. Its totient is φ = 11578745865280.

The previous prime is 12112112211203. The next prime is 12112112211233. The reversal of 12112112211223 is 32211221121121.

It is a cyclic number.

It is not a de Polignac number, because 12112112211223 - 2³³ = 12103522276631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112112211194 and 12112112211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112112211203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576290211 + ... + 576311227.

It is an arithmetic number, because the mean of its divisors is an integer number (790380881136).

Almost surely, 2^{12112112211223} is an apocalyptic number.

12112112211223 is a deficient number, since it is larger than the sum of its proper divisors (533981886953).

12112112211223 is a wasteful number, since it uses less digits than its factorization.

12112112211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34454.

The product of its digits is 192, while the sum is 22.

Adding to 12112112211223 its reverse (32211221121121), we get a palindrome (44323333332344).

The spelling of 12112112211223 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-three".