12122321012321 has 16 divisors (see below), whose sum is σ = 13557786669504. Its totient is φ = 10766477582784.

The previous prime is 12122321012303. The next prime is 12122321012323. The reversal of 12122321012321 is 12321012322121.

It is a cyclic number.

It is not a de Polignac number, because 12122321012321 - 2²⁶ = 12122253903457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122321012323) 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, 161796326 + ... + 161871231.

It is an arithmetic number, because the mean of its divisors is an integer number (847361666844).

Almost surely, 2^{12122321012321} is an apocalyptic number.

It is an amenable number.

12122321012321 is a deficient number, since it is larger than the sum of its proper divisors (1435465657183).

12122321012321 is a wasteful number, since it uses less digits than its factorization.

12122321012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323667680.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12122321012321 its reverse (12321012322121), we get a palindrome (24443333334442).

The spelling of 12122321012321 in words is "twelve trillion, one hundred twenty-two billion, three hundred twenty-one million, twelve thousand, three hundred twenty-one".