323223121221 has 192 divisors, whose sum is σ = 616379694336. Its totient is φ = 147938918400.

The previous prime is 323223121213. The next prime is 323223121229. The reversal of 323223121221 is 122121322323.

It is an interprime number because it is at equal distance from previous prime (323223121213) and next prime (323223121229).

It is not a de Polignac number, because 323223121221 - 2³ = 323223121213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 323223121191 and 323223121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323223121229) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 41218261 + ... + 41226101.

It is an arithmetic number, because the mean of its divisors is an integer number (3210310908).

Almost surely, 2^323223121221 is an apocalyptic number.

It is an amenable number.

323223121221 is a deficient number, since it is larger than the sum of its proper divisors (293156573115).

323223121221 is a wasteful number, since it uses less digits than its factorization.

323223121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7972 (or 7965 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 323223121221 its reverse (122121322323), we get a palindrome (445344443544).

It can be divided in two parts, 323223 and 121221, that added together give a palindrome (444444).

The spelling of 323223121221 in words is "three hundred twenty-three billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred twenty-one".