211312330222321 has 4 divisors (see below), whose sum is σ = 211816655593200. Its totient is φ = 210808004851444.

The previous prime is 211312330222309. The next prime is 211312330222333. The reversal of 211312330222321 is 123222033213112.

211312330222321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (211312330222309) and next prime (211312330222333).

It is a cyclic number.

It is not a de Polignac number, because 211312330222321 - 2¹¹ = 211312330220273 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 211312330222321.

It is not an unprimeable number, because it can be changed into a prime (211312330222361) 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, 252162684811 + ... + 252162685648.

It is an arithmetic number, because the mean of its divisors is an integer number (52954163898300).

Almost surely, 2^{211312330222321} is an apocalyptic number.

It is an amenable number.

211312330222321 is a deficient number, since it is larger than the sum of its proper divisors (504325370879).

211312330222321 is an equidigital number, since it uses as much as digits as its factorization.

211312330222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504325370878.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 211312330222321 its reverse (123222033213112), we get a palindrome (334534363435433).

The spelling of 211312330222321 in words is "two hundred eleven trillion, three hundred twelve billion, three hundred thirty million, two hundred twenty-two thousand, three hundred twenty-one".