323212043102221 has 64 divisors (see below), whose sum is σ = 403983664939008. Its totient is φ = 251765626387968.

The previous prime is 323212043102219. The next prime is 323212043102233. The reversal of 323212043102221 is 122201340212323.

It is a happy number.

It is not a de Polignac number, because 323212043102221 - 2¹ = 323212043102219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323212043102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323212043102021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20041663860 + ... + 20041679986.

It is an arithmetic number, because the mean of its divisors is an integer number (6312244764672).

Almost surely, 2^{323212043102221} is an apocalyptic number.

It is an amenable number.

323212043102221 is a deficient number, since it is larger than the sum of its proper divisors (80771621836787).

323212043102221 is a wasteful number, since it uses less digits than its factorization.

323212043102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21530.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 323212043102221 its reverse (122201340212323), we get a palindrome (445413383314544).

The spelling of 323212043102221 in words is "three hundred twenty-three trillion, two hundred twelve billion, forty-three million, one hundred two thousand, two hundred twenty-one".