331210212213 has 4 divisors (see below), whose sum is σ = 441613616288. Its totient is φ = 220806808140.

The previous prime is 331210212187. The next prime is 331210212241. The reversal of 331210212213 is 312212012133.

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 331210212213 - 2²¹ = 331208115061 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 331210212213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331210212293) 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, 55201702033 + ... + 55201702038.

It is an arithmetic number, because the mean of its divisors is an integer number (110403404072).

Almost surely, 2^331210212213 is an apocalyptic number.

It is an amenable number.

331210212213 is a deficient number, since it is larger than the sum of its proper divisors (110403404075).

331210212213 is a wasteful number, since it uses less digits than its factorization.

331210212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110403404074.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 331210212213 its reverse (312212012133), we get a palindrome (643422224346).

The spelling of 331210212213 in words is "three hundred thirty-one billion, two hundred ten million, two hundred twelve thousand, two hundred thirteen".