2213323312321 has 6 divisors (see below), whose sum is σ = 2432826450866. Its totient is φ = 2012112102000.

The previous prime is 2213323312313. The next prime is 2213323312327. The reversal of 2213323312321 is 1232133233122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1457186979600 + 756136332721 = 1207140^2 + 869561^2 .

It is not a de Polignac number, because 2213323312321 - 2³ = 2213323312313 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 2213323312321.

It is not an unprimeable number, because it can be changed into a prime (2213323312327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9145963980 + ... + 9145964221.

Almost surely, 2^{2213323312321} is an apocalyptic number.

It is an amenable number.

2213323312321 is a deficient number, since it is larger than the sum of its proper divisors (219503138545).

2213323312321 is a wasteful number, since it uses less digits than its factorization.

2213323312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18291928223 (or 18291928212 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

Adding to 2213323312321 its reverse (1232133233122), we get a palindrome (3445456545443).

The spelling of 2213323312321 in words is "two trillion, two hundred thirteen billion, three hundred twenty-three million, three hundred twelve thousand, three hundred twenty-one".