12212120112020 has 12 divisors (see below), whose sum is σ = 25645452235284. Its totient is φ = 4884848044800.

The previous prime is 12212120112007. The next prime is 12212120112041. The reversal of 12212120112020 is 2021102121221.

12212120112020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6902358490756 + 5309761621264 = 2627234^2 + 2304292^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12212120112020.

It is a congruent number.

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, 305303002781 + ... + 305303002820.

It is an arithmetic number, because the mean of its divisors is an integer number (2137121019607).

Almost surely, 2^{12212120112020} is an apocalyptic number.

12212120112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212120112020 is an abundant number, since it is smaller than the sum of its proper divisors (13433332123264).

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

12212120112020 is a wasteful number, since it uses less digits than its factorization.

12212120112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610606005610 (or 610606005608 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212120112020 its reverse (2021102121221), we get a palindrome (14233222233241).

The spelling of 12212120112020 in words is "twelve trillion, two hundred twelve billion, one hundred twenty million, one hundred twelve thousand, twenty".