12211221322323 has 12 divisors (see below), whose sum is σ = 17638491270400. Its totient is φ = 8140786304976.

The previous prime is 12211221322199. The next prime is 12211221322343. The reversal of 12211221322323 is 32322312211221.

12211221322323 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 12 + 2 + 1 + 322 + 323 = 666.

It is not a de Polignac number, because 12211221322323 - 2¹⁷ = 12211221191251 is a prime.

It is a super-2 number, since 2×12211221322323² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211221322343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 644853 + ... + 4983801.

Almost surely, 2^{12211221322323} is an apocalyptic number.

12211221322323 is a deficient number, since it is larger than the sum of its proper divisors (5427269948077).

12211221322323 is a wasteful number, since it uses less digits than its factorization.

12211221322323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651658 (or 4651655 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 12211221322323 its reverse (32322312211221), we get a palindrome (44533533533544).

The spelling of 12211221322323 in words is "twelve trillion, two hundred eleven billion, two hundred twenty-one million, three hundred twenty-two thousand, three hundred twenty-three".