12112210220 has 48 divisors (see below), whose sum is σ = 27959855616. Its totient is φ = 4370808000.

The previous prime is 12112210207. The next prime is 12112210277. The reversal of 12112210220 is 2201221121.

12112210220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12112210195 and 12112210204.

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 15 ways as a sum of consecutive naturals, for example, 181316 + ... + 238955.

It is an arithmetic number, because the mean of its divisors is an integer number (582496992).

Almost surely, 2^12112210220 is an apocalyptic number.

12112210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112210220 is an abundant number, since it is smaller than the sum of its proper divisors (15847645396).

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

12112210220 is a wasteful number, since it uses less digits than its factorization.

12112210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420422 (or 420420 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12112210220 its reverse (2201221121), we get a palindrome (14313431341).

The spelling of 12112210220 in words is "twelve billion, one hundred twelve million, two hundred ten thousand, two hundred twenty".