210221100210 has 32 divisors (see below), whose sum is σ = 550397063232. Its totient is φ = 50962690880.

The previous prime is 210221100197. The next prime is 210221100217. The reversal of 210221100210 is 12001122012.

210221100210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (210221100217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318516489 + ... + 318517148.

It is an arithmetic number, because the mean of its divisors is an integer number (17199908226).

Almost surely, 2^210221100210 is an apocalyptic number.

210221100210 is an abundant number, since it is smaller than the sum of its proper divisors (340175963022).

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

210221100210 is a wasteful number, since it uses less digits than its factorization.

210221100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637033658.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210221100210 its reverse (12001122012), we get a palindrome (222222222222).

The spelling of 210221100210 in words is "two hundred ten billion, two hundred twenty-one million, one hundred thousand, two hundred ten".