12122303210321 has 4 divisors (see below), whose sum is σ = 12404217238512. Its totient is φ = 11840389182132.

The previous prime is 12122303210299. The next prime is 12122303210359. The reversal of 12122303210321 is 12301230322121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12122303210321 - 2⁶ = 12122303210257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122303210621) 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, 140957014031 + ... + 140957014116.

It is an arithmetic number, because the mean of its divisors is an integer number (3101054309628).

Almost surely, 2^{12122303210321} is an apocalyptic number.

It is an amenable number.

12122303210321 is a deficient number, since it is larger than the sum of its proper divisors (281914028191).

12122303210321 is an equidigital number, since it uses as much as digits as its factorization.

12122303210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281914028190.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12122303210321 its reverse (12301230322121), we get a palindrome (24423533532442).

The spelling of 12122303210321 in words is "twelve trillion, one hundred twenty-two billion, three hundred three million, two hundred ten thousand, three hundred twenty-one".