2122213221313 has 4 divisors (see below), whose sum is σ = 2122962328708. Its totient is φ = 2121464113920.

The previous prime is 2122213221299. The next prime is 2122213221361. The reversal of 2122213221313 is 3131223122212.

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 477414666304 + 1644798555009 = 690952^2 + 1282497^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122213221313 - 2²⁹ = 2121676350401 is a prime.

It is a super-3 number, since 3×2122213221313³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122213281313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374549448 + ... + 374555113.

It is an arithmetic number, because the mean of its divisors is an integer number (530740582177).

Almost surely, 2^{2122213221313} is an apocalyptic number.

It is an amenable number.

2122213221313 is a deficient number, since it is larger than the sum of its proper divisors (749107395).

2122213221313 is an equidigital number, since it uses as much as digits as its factorization.

2122213221313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749107394.

The product of its digits is 1728, while the sum is 25.

Adding to 2122213221313 its reverse (3131223122212), we get a palindrome (5253436343525).

The spelling of 2122213221313 in words is "two trillion, one hundred twenty-two billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred thirteen".