12212320322 has 4 divisors (see below), whose sum is σ = 18318480486. Its totient is φ = 6106160160.

The previous prime is 12212320313. The next prime is 12212320349. The reversal of 12212320322 is 22302321221.

It is a happy number.

12212320322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22302321221 = 229 ⋅97390049.

It can be written as a sum of positive squares in only one way, i.e., 10720738681 + 1491581641 = 103541^2 + 38621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12212320294 and 12212320303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053080079 + ... + 3053080082.

Almost surely, 2^12212320322 is an apocalyptic number.

12212320322 is a deficient number, since it is larger than the sum of its proper divisors (6106160164).

12212320322 is an equidigital number, since it uses as much as digits as its factorization.

12212320322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106160163.

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

Adding to 12212320322 its reverse (22302321221), we get a palindrome (34514641543).

The spelling of 12212320322 in words is "twelve billion, two hundred twelve million, three hundred twenty thousand, three hundred twenty-two".