323212220000000 has 144 divisors (see below), whose sum is σ = 806450350716192. Its totient is φ = 129284880000000.

The previous prime is 323212219999961. The next prime is 323212220000003. The reversal of 323212220000000 is 22212323.

It is a super-2 number, since 2×323212220000000² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323212220000003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11919695 + ... + 28080305.

Almost surely, 2^{323212220000000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323212220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403225175358096).

323212220000000 is an abundant number, since it is smaller than the sum of its proper divisors (483238130716192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

323212220000000 is an frugal number, since it uses more digits than its factorization.

323212220000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16160662 (or 16160618 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 323212220000000 its reverse (22212323), we get a palindrome (323212242212323).

The spelling of 323212220000000 in words is "three hundred twenty-three trillion, two hundred twelve billion, two hundred twenty million", and thus it is an aban number.