12112220011122 has 96 divisors (see below), whose sum is σ = 34643355087744. Its totient is φ = 2960970508800.

The previous prime is 12112220011121. The next prime is 12112220011153. The reversal of 12112220011122 is 22111002221121.

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 = 12112220011095 and 12112220011104.

It is not an unprimeable number, because it can be changed into a prime (12112220011121) 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 47 ways as a sum of consecutive naturals, for example, 257005129 + ... + 257052252.

It is an arithmetic number, because the mean of its divisors is an integer number (360868282164).

Almost surely, 2^{12112220011122} is an apocalyptic number.

12112220011122 is an abundant number, since it is smaller than the sum of its proper divisors (22531135076622).

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

12112220011122 is a wasteful number, since it uses less digits than its factorization.

12112220011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514057424 (or 514057421 counting only the distinct ones).

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

Adding to 12112220011122 its reverse (22111002221121), we get a palindrome (34223222232243).

The spelling of 12112220011122 in words is "twelve trillion, one hundred twelve billion, two hundred twenty million, eleven thousand, one hundred twenty-two".