12112020323220 has 48 divisors (see below), whose sum is σ = 33920868764160. Its totient is φ = 3229185242496.

The previous prime is 12112020323219. The next prime is 12112020323231. The reversal of 12112020323220 is 2232302021121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21179335 + ... + 21743694.

It is an arithmetic number, because the mean of its divisors is an integer number (706684765920).

Almost surely, 2^{12112020323220} is an apocalyptic number.

12112020323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112020323220 is an abundant number, since it is smaller than the sum of its proper divisors (21808848440940).

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

12112020323220 is a wasteful number, since it uses less digits than its factorization.

12112020323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42927744 (or 42927742 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12112020323220 its reverse (2232302021121), we get a palindrome (14344322344341).

The spelling of 12112020323220 in words is "twelve trillion, one hundred twelve billion, twenty million, three hundred twenty-three thousand, two hundred twenty".