2222313221 has 8 divisors (see below), whose sum is σ = 2228421888. Its totient is φ = 2216214000.

The previous prime is 2222313217. The next prime is 2222313307. The reversal of 2222313221 is 1223132222.

It is a happy number.

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 2222313221 - 2² = 2222313217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222313193 and 2222313202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222313211) 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, 775331 + ... + 778191.

It is an arithmetic number, because the mean of its divisors is an integer number (278552736).

Almost surely, 2^2222313221 is an apocalyptic number.

It is an amenable number.

2222313221 is a deficient number, since it is larger than the sum of its proper divisors (6108667).

2222313221 is a wasteful number, since it uses less digits than its factorization.

2222313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4723.

The product of its digits is 576, while the sum is 20.

The square root of 2222313221 is about 47141.4172570151. The cubic root of 2222313221 is about 1304.9736925550.

Adding to 2222313221 its reverse (1223132222), we get a palindrome (3445445443).

The spelling of 2222313221 in words is "two billion, two hundred twenty-two million, three hundred thirteen thousand, two hundred twenty-one".