12222110321 has 4 divisors (see below), whose sum is σ = 12222539892. Its totient is φ = 12221680752.

The previous prime is 12222110311. The next prime is 12222110353. The reversal of 12222110321 is 12301122221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6442309696 + 5779800625 = 80264^2 + 76025^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222110321 - 2²⁶ = 12155001457 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 12222110321.

It is not an unprimeable number, because it can be changed into a prime (12222110311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168830 + ... + 230103.

It is an arithmetic number, because the mean of its divisors is an integer number (3055634973).

Almost surely, 2^12222110321 is an apocalyptic number.

It is an amenable number.

12222110321 is a deficient number, since it is larger than the sum of its proper divisors (429571).

12222110321 is an equidigital number, since it uses as much as digits as its factorization.

12222110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429570.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12222110321 its reverse (12301122221), we get a palindrome (24523232542).

The spelling of 12222110321 in words is "twelve billion, two hundred twenty-two million, one hundred ten thousand, three hundred twenty-one".