12112223120 has 80 divisors (see below), whose sum is σ = 28562338560. Its totient is φ = 4776026112.

The previous prime is 12112223107. The next prime is 12112223147. The reversal of 12112223120 is 2132221121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5731184 + ... + 5733296.

It is an arithmetic number, because the mean of its divisors is an integer number (357029232).

Almost surely, 2^12112223120 is an apocalyptic number.

12112223120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12112223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14281169280).

12112223120 is an abundant number, since it is smaller than the sum of its proper divisors (16450115440).

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

12112223120 is a wasteful number, since it uses less digits than its factorization.

12112223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112 (or 3106 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12112223120 its reverse (2132221121), we get a palindrome (14244444241).

The spelling of 12112223120 in words is "twelve billion, one hundred twelve million, two hundred twenty-three thousand, one hundred twenty".