212222332213 has 4 divisors (see below), whose sum is σ = 213394831468. Its totient is φ = 211049832960.

The previous prime is 212222332199. The next prime is 212222332249. The reversal of 212222332213 is 312233222212.

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 97095806404 + 115126525809 = 311602^2 + 339303^2 .

It is a cyclic number.

It is not a de Polignac number, because 212222332213 - 2⁵ = 212222332181 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 (212222332313) 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, 586249356 + ... + 586249717.

It is an arithmetic number, because the mean of its divisors is an integer number (53348707867).

Almost surely, 2^212222332213 is an apocalyptic number.

It is an amenable number.

212222332213 is a deficient number, since it is larger than the sum of its proper divisors (1172499255).

212222332213 is a wasteful number, since it uses less digits than its factorization.

212222332213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172499254.

The product of its digits is 3456, while the sum is 25.

Adding to 212222332213 its reverse (312233222212), we get a palindrome (524455554425).

The spelling of 212222332213 in words is "two hundred twelve billion, two hundred twenty-two million, three hundred thirty-two thousand, two hundred thirteen".