212130210 has 32 divisors (see below), whose sum is σ = 525537792. Its totient is φ = 54743040.

The previous prime is 212130161. The next prime is 212130229. The reversal of 212130210 is 12031212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113119 + ... + 114978.

It is an arithmetic number, because the mean of its divisors is an integer number (16423056).

Almost surely, 2^212130210 is an apocalyptic number.

212130210 is an abundant number, since it is smaller than the sum of its proper divisors (313407582).

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

212130210 is a wasteful number, since it uses less digits than its factorization.

212130210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228138.

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

The square root of 212130210 is about 14564.6905219438. The cubic root of 212130210 is about 596.3952474138.

Adding to 212130210 its reverse (12031212), we get a palindrome (224161422).

The spelling of 212130210 in words is "two hundred twelve million, one hundred thirty thousand, two hundred ten".