12112213320 has 96 divisors (see below), whose sum is σ = 39415633920. Its totient is φ = 3225744000.

The previous prime is 12112213249. The next prime is 12112213327. The reversal of 12112213320 is 2331221121.

12112213320 is a `hidden beast` number, since 121 + 1 + 221 + 3 + 320 = 666.

12112213320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 12112213293 and 12112213302.

It is not an unprimeable number, because it can be changed into a prime (12112213327) 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 23 ways as a sum of consecutive naturals, for example, 261945 + ... + 304695.

It is an arithmetic number, because the mean of its divisors is an integer number (410579520).

Almost surely, 2^12112213320 is an apocalyptic number.

12112213320 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 12112213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19707816960).

12112213320 is an abundant number, since it is smaller than the sum of its proper divisors (27303420600).

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

12112213320 is a wasteful number, since it uses less digits than its factorization.

12112213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43555 (or 43548 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12112213320 its reverse (2331221121), we get a palindrome (14443434441).

The spelling of 12112213320 in words is "twelve billion, one hundred twelve million, two hundred thirteen thousand, three hundred twenty".