210012213 has 4 divisors (see below), whose sum is σ = 280016288. Its totient is φ = 140008140.

The previous prime is 210012193. The next prime is 210012223. The reversal of 210012213 is 312210012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 210012213 - 2¹⁰ = 210011189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012223) 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, 35002033 + ... + 35002038.

It is an arithmetic number, because the mean of its divisors is an integer number (70004072).

Almost surely, 2^210012213 is an apocalyptic number.

It is an amenable number.

210012213 is a deficient number, since it is larger than the sum of its proper divisors (70004075).

210012213 is an equidigital number, since it uses as much as digits as its factorization.

210012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70004074.

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

The square root of 210012213 is about 14491.7981285967. The cubic root of 210012213 is about 594.4037177702.

Adding to 210012213 its reverse (312210012), we get a palindrome (522222225).

The spelling of 210012213 in words is "two hundred ten million, twelve thousand, two hundred thirteen".