210021012220000 has 60 divisors (see below), whose sum is σ = 516683193262236. Its totient is φ = 84008404880000.

The previous prime is 210021012219983. The next prime is 210021012220013. The reversal of 210021012220000 is 22210120012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5250505306 + ... + 5250545305.

Almost surely, 2^{210021012220000} is an apocalyptic number.

210021012220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210021012220000 is an abundant number, since it is smaller than the sum of its proper divisors (306662181042236).

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

210021012220000 is an equidigital number, since it uses as much as digits as its factorization.

210021012220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10501050641 (or 10501050618 counting only the distinct ones).

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

Adding to 210021012220000 its reverse (22210120012), we get a palindrome (210043222340012).

The spelling of 210021012220000 in words is "two hundred ten trillion, twenty-one billion, twelve million, two hundred twenty thousand".