12112220222020 has 12 divisors (see below), whose sum is σ = 25435662466284. Its totient is φ = 4844888088800.

The previous prime is 12112220222009. The next prime is 12112220222059. The reversal of 12112220222020 is 2022202221121.

It can be written as a sum of positive squares in 2 ways, for example, as 6131378250244 + 5980841971776 = 2476162^2 + 2445576^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302805505531 + ... + 302805505570.

It is an arithmetic number, because the mean of its divisors is an integer number (2119638538857).

Almost surely, 2^{12112220222020} is an apocalyptic number.

12112220222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112220222020 is an abundant number, since it is smaller than the sum of its proper divisors (13323442244264).

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

12112220222020 is a wasteful number, since it uses less digits than its factorization.

12112220222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605611011110 (or 605611011108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12112220222020 its reverse (2022202221121), we get a palindrome (14134422443141).

The spelling of 12112220222020 in words is "twelve trillion, one hundred twelve billion, two hundred twenty million, two hundred twenty-two thousand, twenty".