210205213 has 2 divisors, whose sum is σ = 210205214. Its totient is φ = 210205212.

The previous prime is 210205157. The next prime is 210205231. The reversal of 210205213 is 312502012.

Together with next prime (210205231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181764324 + 28440889 = 13482^2 + 5333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210205213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210205013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105102606 + 105102607.

It is an arithmetic number, because the mean of its divisors is an integer number (105102607).

Almost surely, 2^210205213 is an apocalyptic number.

It is an amenable number.

210205213 is a deficient number, since it is larger than the sum of its proper divisors (1).

210205213 is an equidigital number, since it uses as much as digits as its factorization.

210205213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 210205213 is about 14498.4555384358. The cubic root of 210205213 is about 594.5857465381.

Adding to 210205213 its reverse (312502012), we get a palindrome (522707225).

The spelling of 210205213 in words is "two hundred ten million, two hundred five thousand, two hundred thirteen".