323232231212221 has 4 divisors (see below), whose sum is σ = 326092693435452. Its totient is φ = 320371768988992.

The previous prime is 323232231212179. The next prime is 323232231212263. The reversal of 323232231212221 is 122212132232323.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (323232231212179) and next prime (323232231212263).

It can be written as a sum of positive squares in 2 ways, for example, as 57525474548025 + 265706756664196 = 7584555^2 + 16300514^2 .

It is a cyclic number.

It is not a de Polignac number, because 323232231212221 - 2²³ = 323232222823613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323232231216221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430231111446 + ... + 1430231111671.

It is an arithmetic number, because the mean of its divisors is an integer number (81523173358863).

Almost surely, 2^{323232231212221} is an apocalyptic number.

It is an amenable number.

323232231212221 is a deficient number, since it is larger than the sum of its proper divisors (2860462223231).

323232231212221 is a wasteful number, since it uses less digits than its factorization.

323232231212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860462223230.

The product of its digits is 20736, while the sum is 31.

Adding to 323232231212221 its reverse (122212132232323), we get a palindrome (445444363444544).

The spelling of 323232231212221 in words is "three hundred twenty-three trillion, two hundred thirty-two billion, two hundred thirty-one million, two hundred twelve thousand, two hundred twenty-one".