12222313 has 4 divisors (see below), whose sum is σ = 12343428. Its totient is φ = 12101200.

The previous prime is 12222307. The next prime is 12222319. The reversal of 12222313 is 31322221.

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

It is an interprime number because it is at equal distance from previous prime (12222307) and next prime (12222319).

It can be written as a sum of positive squares in 2 ways, for example, as 11370384 + 851929 = 3372^2 + 923^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222313 - 2⁹ = 12221801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222319) 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, 60406 + ... + 60607.

It is an arithmetic number, because the mean of its divisors is an integer number (3085857).

Almost surely, 2^12222313 is an apocalyptic number.

It is an amenable number.

12222313 is a deficient number, since it is larger than the sum of its proper divisors (121115).

12222313 is a wasteful number, since it uses less digits than its factorization.

12222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121114.

The product of its digits is 144, while the sum is 16.

The square root of 12222313 is about 3496.0424768587. The cubic root of 12222313 is about 230.3480112834.

Adding to 12222313 its reverse (31322221), we get a palindrome (43544534).

The spelling of 12222313 in words is "twelve million, two hundred twenty-two thousand, three hundred thirteen".