12320221322 has 8 divisors (see below), whose sum is σ = 19117584900. Its totient is φ = 5947693024.

The previous prime is 12320221307. The next prime is 12320221337. The reversal of 12320221322 is 22312202321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12320221307) and next prime (12320221337).

It can be written as a sum of positive squares in 2 ways, for example, as 10980734521 + 1339486801 = 104789^2 + 36599^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12320221294 and 12320221303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106208747 + ... + 106208862.

Almost surely, 2^12320221322 is an apocalyptic number.

12320221322 is a deficient number, since it is larger than the sum of its proper divisors (6797363578).

12320221322 is a wasteful number, since it uses less digits than its factorization.

12320221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212417640.

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

Adding to 12320221322 its reverse (22312202321), we get a palindrome (34632423643).

The spelling of 12320221322 in words is "twelve billion, three hundred twenty million, two hundred twenty-one thousand, three hundred twenty-two".