212230211213 has 4 divisors (see below), whose sum is σ = 212637563388. Its totient is φ = 211822859040.

The previous prime is 212230211189. The next prime is 212230211233. The reversal of 212230211213 is 312112032212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133694072164 + 78536139049 = 365642^2 + 280243^2 .

It is a cyclic number.

It is not a de Polignac number, because 212230211213 - 2²⁴ = 212213433997 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 (212230211233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203675306 + ... + 203676347.

It is an arithmetic number, because the mean of its divisors is an integer number (53159390847).

Almost surely, 2^212230211213 is an apocalyptic number.

It is an amenable number.

212230211213 is a deficient number, since it is larger than the sum of its proper divisors (407352175).

212230211213 is an equidigital number, since it uses as much as digits as its factorization.

212230211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407352174.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212230211213 its reverse (312112032212), we get a palindrome (524342243425).

The spelling of 212230211213 in words is "two hundred twelve billion, two hundred thirty million, two hundred eleven thousand, two hundred thirteen".