12112111120 has 80 divisors (see below), whose sum is σ = 28369612800. Its totient is φ = 4809024000.

The previous prime is 12112110943. The next prime is 12112111133. The reversal of 12112111120 is 2111121121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 12112111120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10522545 + ... + 10523695.

It is an arithmetic number, because the mean of its divisors is an integer number (354620160).

Almost surely, 2^12112111120 is an apocalyptic number.

12112111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112111120 is an abundant number, since it is smaller than the sum of its proper divisors (16257501680).

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

12112111120 is a wasteful number, since it uses less digits than its factorization.

12112111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12112111120 its reverse (2111121121), we get a palindrome (14223232241).

The spelling of 12112111120 in words is "twelve billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty".