12220012010020 has 48 divisors (see below), whose sum is σ = 26166314342448. Its totient is φ = 4792091532800.

The previous prime is 12220012009987. The next prime is 12220012010053. The reversal of 12220012010020 is 2001021002221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12220012009987) and next prime (12220012010053).

It can be written as a sum of positive squares in 8 ways, for example, as 1934085429796 + 10285926580224 = 1390714^2 + 3207168^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3051499 + ... + 5809618.

It is an arithmetic number, because the mean of its divisors is an integer number (545131548801).

Almost surely, 2^{12220012010020} is an apocalyptic number.

12220012010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220012010020 is an abundant number, since it is smaller than the sum of its proper divisors (13946302332428).

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

12220012010020 is a wasteful number, since it uses less digits than its factorization.

12220012010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8862480 (or 8862478 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12220012010020 its reverse (2001021002221), we get a palindrome (14221033012241).

The spelling of 12220012010020 in words is "twelve trillion, two hundred twenty billion, twelve million, ten thousand, twenty".