12212002220020 has 24 divisors (see below), whose sum is σ = 25728739543584. Its totient is φ = 4868889482016.

The previous prime is 12212002219999. The next prime is 12212002220051. The reversal of 12212002220020 is 2002220021221.

It is a junction number, because it is equal to n+sod(n) for n = 12212002219976 and 12212002220003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994456582 + ... + 994468861.

It is an arithmetic number, because the mean of its divisors is an integer number (1072030814316).

Almost surely, 2^{12212002220020} is an apocalyptic number.

12212002220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212002220020 is an abundant number, since it is smaller than the sum of its proper divisors (13516737323564).

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

12212002220020 is a wasteful number, since it uses less digits than its factorization.

12212002220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988925759 (or 1988925757 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12212002220020 its reverse (2002220021221), we get a palindrome (14214222241241).

The spelling of 12212002220020 in words is "twelve trillion, two hundred twelve billion, two million, two hundred twenty thousand, twenty".