12210331321211 has 4 divisors (see below), whose sum is σ = 12255387894624. Its totient is φ = 12165274747800.

The previous prime is 12210331321147. The next prime is 12210331321249. The reversal of 12210331321211 is 11212313301221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12210331321211 - 2⁶ = 12210331321147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210331321291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22528286300 + ... + 22528286841.

It is an arithmetic number, because the mean of its divisors is an integer number (3063846973656).

Almost surely, 2^{12210331321211} is an apocalyptic number.

12210331321211 is a deficient number, since it is larger than the sum of its proper divisors (45056573413).

12210331321211 is an equidigital number, since it uses as much as digits as its factorization.

12210331321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45056573412.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12210331321211 its reverse (11212313301221), we get a palindrome (23422644622432).

The spelling of 12210331321211 in words is "twelve trillion, two hundred ten billion, three hundred thirty-one million, three hundred twenty-one thousand, two hundred eleven".