212202012020020 has 96 divisors (see below), whose sum is σ = 486776094255360. Its totient is φ = 77062704983040.

The previous prime is 212202012019997. The next prime is 212202012020021. The reversal of 212202012020020 is 20020210202212.

It is a junction number, because it is equal to n+sod(n) for n = 212202012019976 and 212202012020003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202012020021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2564116482 + ... + 2564199238.

It is an arithmetic number, because the mean of its divisors is an integer number (5070584315160).

Almost surely, 2^{212202012020020} is an apocalyptic number.

212202012020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212202012020020 is an abundant number, since it is smaller than the sum of its proper divisors (274574082235340).

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

212202012020020 is a wasteful number, since it uses less digits than its factorization.

212202012020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97993 (or 97991 counting only the distinct ones).

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

Adding to 212202012020020 its reverse (20020210202212), we get a palindrome (232222222222232).

The spelling of 212202012020020 in words is "two hundred twelve trillion, two hundred two billion, twelve million, twenty thousand, twenty".