1222302321 has 12 divisors (see below), whose sum is σ = 1766686480. Its totient is φ = 814342680.

The previous prime is 1222302311. The next prime is 1222302331. The reversal of 1222302321 is 1232032221.

It is an interprime number because it is at equal distance from previous prime (1222302311) and next prime (1222302331).

It is not a de Polignac number, because 1222302321 - 2⁹ = 1222301809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222302294 and 1222302303.

It is not an unprimeable number, because it can be changed into a prime (1222302311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28795 + ... + 57216.

Almost surely, 2^1222302321 is an apocalyptic number.

It is an amenable number.

1222302321 is a deficient number, since it is larger than the sum of its proper divisors (544384159).

1222302321 is a wasteful number, since it uses less digits than its factorization.

1222302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87596 (or 87593 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1222302321 is about 34961.4404880577. The cubic root of 1222302321 is about 1069.2014658138.

Adding to 1222302321 its reverse (1232032221), we get a palindrome (2454334542).

The spelling of 1222302321 in words is "one billion, two hundred twenty-two million, three hundred two thousand, three hundred twenty-one".