323212230221021 has 4 divisors (see below), whose sum is σ = 323373594292032. Its totient is φ = 323050866150012.

The previous prime is 323212230221011. The next prime is 323212230221029. The reversal of 323212230221021 is 120122032212323.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323212230221021 is a prime.

It is a super-2 number, since 2×323212230221021² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323212230221029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80682032501 + ... + 80682036506.

It is an arithmetic number, because the mean of its divisors is an integer number (80843398573008).

Almost surely, 2^{323212230221021} is an apocalyptic number.

It is an amenable number.

323212230221021 is a deficient number, since it is larger than the sum of its proper divisors (161364071011).

323212230221021 is a wasteful number, since it uses less digits than its factorization.

323212230221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161364071010.

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

Adding to 323212230221021 its reverse (120122032212323), we get a palindrome (443334262433344).

The spelling of 323212230221021 in words is "three hundred twenty-three trillion, two hundred twelve billion, two hundred thirty million, two hundred twenty-one thousand, twenty-one".