323212210320221 has 12 divisors (see below), whose sum is σ = 343343732112768. Its totient is φ = 304199144836032.

The previous prime is 323212210320149. The next prime is 323212210320239. The reversal of 323212210320221 is 122023012212323.

It is not a de Polignac number, because 323212210320221 - 2¹⁸ = 323212210058077 is a prime.

It is a super-2 number, since 2×323212210320221² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323212210320271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260257070 + ... + 261496016.

It is an arithmetic number, because the mean of its divisors is an integer number (28611977676064).

Almost surely, 2^{323212210320221} is an apocalyptic number.

It is an amenable number.

323212210320221 is a deficient number, since it is larger than the sum of its proper divisors (20131521792547).

323212210320221 is a wasteful number, since it uses less digits than its factorization.

323212210320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141668 (or 2141651 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 323212210320221 its reverse (122023012212323), we get a palindrome (445235222532544).

The spelling of 323212210320221 in words is "three hundred twenty-three trillion, two hundred twelve billion, two hundred ten million, three hundred twenty thousand, two hundred twenty-one".