323211323211221 has 8 divisors (see below), whose sum is σ = 333638260370688. Its totient is φ = 312784433892000.

The previous prime is 323211323211131. The next prime is 323211323211253. The reversal of 323211323211221 is 122112323112323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323211323211221 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 (323211323211121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029766 + ... + 25505736.

It is an arithmetic number, because the mean of its divisors is an integer number (41704782546336).

Almost surely, 2^{323211323211221} is an apocalyptic number.

323211323211221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

323211323211221 is a deficient number, since it is larger than the sum of its proper divisors (10426937159467).

323211323211221 is a wasteful number, since it uses less digits than its factorization.

323211323211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23920123.

The product of its digits is 5184, while the sum is 29.

Adding to 323211323211221 its reverse (122112323112323), we get a palindrome (445323646323544).

The spelling of 323211323211221 in words is "three hundred twenty-three trillion, two hundred eleven billion, three hundred twenty-three million, two hundred eleven thousand, two hundred twenty-one".