210021210300 has 144 divisors (see below), whose sum is σ = 685762358400. Its totient is φ = 49158547200.

The previous prime is 210021210251. The next prime is 210021210317. The reversal of 210021210300 is 3012120012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1001590 + ... + 1192989.

It is an arithmetic number, because the mean of its divisors is an integer number (4762238600).

Almost surely, 2^210021210300 is an apocalyptic number.

210021210300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210021210300 is an abundant number, since it is smaller than the sum of its proper divisors (475741148100).

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

210021210300 is a wasteful number, since it uses less digits than its factorization.

210021210300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194636 (or 2194629 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 210021210300 its reverse (3012120012), we get a palindrome (213033330312).

The spelling of 210021210300 in words is "two hundred ten billion, twenty-one million, two hundred ten thousand, three hundred".