12322112221 has 16 divisors (see below), whose sum is σ = 12802572288. Its totient is φ = 11847024000.

The previous prime is 12322112203. The next prime is 12322112239. The reversal of 12322112221 is 12221122321.

It is an interprime number because it is at equal distance from previous prime (12322112203) and next prime (12322112239).

It is a cyclic number.

It is not a de Polignac number, because 12322112221 - 2¹⁷ = 12321981149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322112281) 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 15 ways as a sum of consecutive naturals, for example, 7028281 + ... + 7030033.

It is an arithmetic number, because the mean of its divisors is an integer number (800160768).

Almost surely, 2^12322112221 is an apocalyptic number.

It is an amenable number.

12322112221 is a deficient number, since it is larger than the sum of its proper divisors (480460067).

12322112221 is a wasteful number, since it uses less digits than its factorization.

12322112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132.

The product of its digits is 192, while the sum is 19.

Adding to 12322112221 its reverse (12221122321), we get a palindrome (24543234542).

The spelling of 12322112221 in words is "twelve billion, three hundred twenty-two million, one hundred twelve thousand, two hundred twenty-one".