212190213 has 4 divisors (see below), whose sum is σ = 282920288. Its totient is φ = 141460140.

The previous prime is 212190169. The next prime is 212190259. The reversal of 212190213 is 312091212.

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 212190213 - 2⁶ = 212190149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212190213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35365033 + ... + 35365038.

It is an arithmetic number, because the mean of its divisors is an integer number (70730072).

Almost surely, 2^212190213 is an apocalyptic number.

It is an amenable number.

212190213 is a deficient number, since it is larger than the sum of its proper divisors (70730075).

212190213 is an equidigital number, since it uses as much as digits as its factorization.

212190213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70730074.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 212190213 is about 14566.7502552903. The cubic root of 212190213 is about 596.4514740909.

Subtracting 212190213 from its reverse (312091212), we obtain a palindrome (99900999).

The spelling of 212190213 in words is "two hundred twelve million, one hundred ninety thousand, two hundred thirteen".