210530212 has 12 divisors (see below), whose sum is σ = 372568140. Its totient is φ = 104082176.

The previous prime is 210530197. The next prime is 210530219. The reversal of 210530212 is 212035012.

210530212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 150405696 + 60124516 = 12264^2 + 7754^2 .

It is not an unprimeable number, because it can be changed into a prime (210530219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295333 + ... + 296044.

It is an arithmetic number, because the mean of its divisors is an integer number (31047345).

Almost surely, 2^210530212 is an apocalyptic number.

It is an amenable number.

210530212 is a deficient number, since it is larger than the sum of its proper divisors (162037928).

210530212 is a wasteful number, since it uses less digits than its factorization.

210530212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591470 (or 591468 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 210530212 is about 14509.6592654686. The cubic root of 210530212 is about 594.8920191026.

Adding to 210530212 its reverse (212035012), we get a palindrome (422565224).

The spelling of 210530212 in words is "two hundred ten million, five hundred thirty thousand, two hundred twelve".