12322001212221 has 16 divisors (see below), whose sum is σ = 16533626420160. Its totient is φ = 8162591226240.

The previous prime is 12322001212219. The next prime is 12322001212259. The reversal of 12322001212221 is 12221210022321.

It is not a de Polignac number, because 12322001212221 - 2¹ = 12322001212219 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322001212211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7975710 + ... + 9394463.

It is an arithmetic number, because the mean of its divisors is an integer number (1033351651260).

Almost surely, 2^{12322001212221} is an apocalyptic number.

It is an amenable number.

12322001212221 is a deficient number, since it is larger than the sum of its proper divisors (4211625207939).

12322001212221 is a wasteful number, since it uses less digits than its factorization.

12322001212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17371676.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12322001212221 its reverse (12221210022321), we get a palindrome (24543211234542).

The spelling of 12322001212221 in words is "twelve trillion, three hundred twenty-two billion, one million, two hundred twelve thousand, two hundred twenty-one".