12210221323 has 4 divisors (see below), whose sum is σ = 12234210480. Its totient is φ = 12186232168.

The previous prime is 12210221293. The next prime is 12210221327. The reversal of 12210221323 is 32312201221.

12210221323 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: 32312201221 = 47 ⋅687493643.

It is a cyclic number.

It is not a de Polignac number, because 12210221323 - 2¹³ = 12210213131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12210221323.

It is not an unprimeable number, because it can be changed into a prime (12210221327) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 11993815 + ... + 11994832.

It is an arithmetic number, because the mean of its divisors is an integer number (3058552620).

Almost surely, 2^12210221323 is an apocalyptic number.

12210221323 is a deficient number, since it is larger than the sum of its proper divisors (23989157).

12210221323 is an equidigital number, since it uses as much as digits as its factorization.

12210221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23989156.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12210221323 its reverse (32312201221), we get a palindrome (44522422544).

The spelling of 12210221323 in words is "twelve billion, two hundred ten million, two hundred twenty-one thousand, three hundred twenty-three".