321132212244 has 72 divisors (see below), whose sum is σ = 859616365608. Its totient is φ = 100733829120.

The previous prime is 321132212237. The next prime is 321132212249. The reversal of 321132212244 is 442212231123.

321132212244 is a `hidden beast` number, since 3 + 211 + 3 + 221 + 224 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 255499920900 + 65632291344 = 505470^2 + 256188^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321132212249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5147124 + ... + 5209140.

It is an arithmetic number, because the mean of its divisors is an integer number (11939116189).

Almost surely, 2^321132212244 is an apocalyptic number.

321132212244 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

321132212244 is an abundant number, since it is smaller than the sum of its proper divisors (538484153364).

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

321132212244 is a wasteful number, since it uses less digits than its factorization.

321132212244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70505 (or 70500 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 321132212244 its reverse (442212231123), we get a palindrome (763344443367).

The spelling of 321132212244 in words is "three hundred twenty-one billion, one hundred thirty-two million, two hundred twelve thousand, two hundred forty-four".