12112122220112 has 20 divisors (see below), whose sum is σ = 24702354528480. Its totient is φ = 5737321051488.

The previous prime is 12112122220057. The next prime is 12112122220123. The reversal of 12112122220112 is 21102222121121.

It is a super-3 number, since 3×12112122220112³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19921253348 + ... + 19921253955.

It is an arithmetic number, because the mean of its divisors is an integer number (1235117726424).

Almost surely, 2^{12112122220112} is an apocalyptic number.

It is an amenable number.

12112122220112 is an abundant number, since it is smaller than the sum of its proper divisors (12590232308368).

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

12112122220112 is a wasteful number, since it uses less digits than its factorization.

12112122220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39842507330 (or 39842507324 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12112122220112 its reverse (21102222121121), we get a palindrome (33214344341233).

The spelling of 12112122220112 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twelve".