2213231321 has 8 divisors (see below), whose sum is σ = 2662534080. Its totient is φ = 1797210288.

The previous prime is 2213231303. The next prime is 2213231333. The reversal of 2213231321 is 1231323122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213231321 - 2¹⁸ = 2212969177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2213231293 and 2213231302.

It is not an unprimeable number, because it can be changed into a prime (2213231621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8320286 + ... + 8320551.

It is an arithmetic number, because the mean of its divisors is an integer number (332816760).

Almost surely, 2^2213231321 is an apocalyptic number.

It is an amenable number.

2213231321 is a deficient number, since it is larger than the sum of its proper divisors (449302759).

2213231321 is a wasteful number, since it uses less digits than its factorization.

2213231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16640863.

The product of its digits is 432, while the sum is 20.

The square root of 2213231321 is about 47044.9925178015. The cubic root of 2213231321 is about 1303.1935921515.

Adding to 2213231321 its reverse (1231323122), we get a palindrome (3444554443).

The spelling of 2213231321 in words is "two billion, two hundred thirteen million, two hundred thirty-one thousand, three hundred twenty-one".