12112122122122 has 64 divisors (see below), whose sum is σ = 20412499903488. Its totient is φ = 5342652000000.

The previous prime is 12112122122117. The next prime is 12112122122143. The reversal of 12112122122122 is 22122122121121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12112122122093 and 12112122122102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95152243 + ... + 95279449.

It is an arithmetic number, because the mean of its divisors is an integer number (318945310992).

Almost surely, 2^{12112122122122} is an apocalyptic number.

12112122122122 is a deficient number, since it is larger than the sum of its proper divisors (8300377781366).

12112122122122 is a wasteful number, since it uses less digits than its factorization.

12112122122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127915.

The product of its digits is 256, while the sum is 22.

Adding to 12112122122122 its reverse (22122122121121), we get a palindrome (34234244243243).

The spelling of 12112122122122 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".