212110213 has 4 divisors (see below), whose sum is σ = 242411680. Its totient is φ = 181808748.

The previous prime is 212110211. The next prime is 212110259. The reversal of 212110213 is 312011212.

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 a cyclic number.

It is not a de Polignac number, because 212110213 - 2¹ = 212110211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212110193 and 212110202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110211) 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, 15150723 + ... + 15150736.

It is an arithmetic number, because the mean of its divisors is an integer number (60602920).

Almost surely, 2^212110213 is an apocalyptic number.

It is an amenable number.

212110213 is a deficient number, since it is larger than the sum of its proper divisors (30301467).

212110213 is an equidigital number, since it uses as much as digits as its factorization.

212110213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30301466.

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

The square root of 212110213 is about 14564.0040167531. The cubic root of 212110213 is about 596.3765065807.

Adding to 212110213 its reverse (312011212), we get a palindrome (524121425).

Subtracting 212110213 from its reverse (312011212), we obtain a palindrome (99900999).

The spelling of 212110213 in words is "two hundred twelve million, one hundred ten thousand, two hundred thirteen".