210112213 has 2 divisors, whose sum is σ = 210112214. Its totient is φ = 210112212.

The previous prime is 210112211. The next prime is 210112223. The reversal of 210112213 is 312211012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208455844 + 1656369 = 14438^2 + 1287^2 .

It is a cyclic number.

It is not a de Polignac number, because 210112213 - 2¹ = 210112211 is a prime.

Together with 210112211, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 210112193 and 210112202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210112211) by changing a digit.

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 as a sum of consecutive naturals, namely, 105056106 + 105056107.

It is an arithmetic number, because the mean of its divisors is an integer number (105056107).

Almost surely, 2^210112213 is an apocalyptic number.

It is an amenable number.

210112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

210112213 is an equidigital number, since it uses as much as digits as its factorization.

210112213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 210112213 is about 14495.2479454475. The cubic root of 210112213 is about 594.4980471094.

Adding to 210112213 its reverse (312211012), we get a palindrome (522323225).

The spelling of 210112213 in words is "two hundred ten million, one hundred twelve thousand, two hundred thirteen".