12112221102111 has 12 divisors (see below), whose sum is σ = 18841232825688. Its totient is φ = 7453674524304.

The previous prime is 12112221102083. The next prime is 12112221102151. The reversal of 12112221102111 is 11120112221121.

It is a happy number.

12112221102111 is a `hidden beast` number, since 121 + 1 + 222 + 110 + 211 + 1 = 666.

It is not a de Polignac number, because 12112221102111 - 2¹⁰ = 12112221101087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112221102151) 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 11 ways as a sum of consecutive naturals, for example, 51761628525 + ... + 51761628758.

It is an arithmetic number, because the mean of its divisors is an integer number (1570102735474).

Almost surely, 2^{12112221102111} is an apocalyptic number.

12112221102111 is a deficient number, since it is larger than the sum of its proper divisors (6729011723577).

12112221102111 is a wasteful number, since it uses less digits than its factorization.

12112221102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103523257302 (or 103523257299 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12112221102111 its reverse (11120112221121), we get a palindrome (23232333323232).

The spelling of 12112221102111 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-one million, one hundred two thousand, one hundred eleven".