2221313234311 has 4 divisors (see below), whose sum is σ = 2221660483672. Its totient is φ = 2220965984952.

The previous prime is 2221313234297. The next prime is 2221313234317. The reversal of 2221313234311 is 1134323131222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221313234311 - 2¹⁵ = 2221313201543 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 2221313234311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221313234317) 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, 173615085 + ... + 173627878.

It is an arithmetic number, because the mean of its divisors is an integer number (555415120918).

Almost surely, 2^{2221313234311} is an apocalyptic number.

2221313234311 is a deficient number, since it is larger than the sum of its proper divisors (347249361).

2221313234311 is an equidigital number, since it uses as much as digits as its factorization.

2221313234311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347249360.

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

Adding to 2221313234311 its reverse (1134323131222), we get a palindrome (3355636365533).

The spelling of 2221313234311 in words is "two trillion, two hundred twenty-one billion, three hundred thirteen million, two hundred thirty-four thousand, three hundred eleven".