210212 has 6 divisors (see below), whose sum is σ = 367878. Its totient is φ = 105104.

The previous prime is 210209. The next prime is 210229. The reversal of 210212 is 212012.

It can be written as a sum of positive squares in only one way, i.e., 206116 + 4096 = 454^2 + 64^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26273 + ... + 26280.

It is an arithmetic number, because the mean of its divisors is an integer number (61313).

2²¹⁰²¹² is an apocalyptic number.

It is an amenable number.

210212 is a deficient number, since it is larger than the sum of its proper divisors (157666).

210212 is a wasteful number, since it uses less digits than its factorization.

210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52557 (or 52555 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 210212 is about 458.4888221102. The cubic root of 210212 is about 59.4592145698.

Adding to 210212 its reverse (212012), we get a palindrome (422224).

The spelling of 210212 in words is "two hundred ten thousand, two hundred twelve", and thus it is an iban number.