12112021012122 has 24 divisors (see below), whose sum is σ = 26801067773376. Its totient is φ = 3951439478856.

The previous prime is 12112021012067. The next prime is 12112021012127. The reversal of 12112021012122 is 22121012021121.

12112021012122 is a `hidden beast` number, since 121 + 120 + 210 + 1 + 212 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12112021012095 and 12112021012104.

It is not an unprimeable number, because it can be changed into a prime (12112021012127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7158404008 + ... + 7158405699.

It is an arithmetic number, because the mean of its divisors is an integer number (1116711157224).

Almost surely, 2^{12112021012122} is an apocalyptic number.

12112021012122 is an abundant number, since it is smaller than the sum of its proper divisors (14689046761254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112021012122 is a wasteful number, since it uses less digits than its factorization.

12112021012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14316809762 (or 14316809759 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12112021012122 its reverse (22121012021121), we get a palindrome (34233033033243).

The spelling of 12112021012122 in words is "twelve trillion, one hundred twelve billion, twenty-one million, twelve thousand, one hundred twenty-two".