321440221243112 has 32 divisors (see below), whose sum is σ = 608221869622920. Its totient is φ = 159252059612160.

The previous prime is 321440221243087. The next prime is 321440221243177. The reversal of 321440221243112 is 211342122044123.

It can be written as a sum of positive squares in 4 ways, for example, as 246858585286756 + 74581635956356 = 15711734^2 + 8636066^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270465173 + ... + 271651044.

Almost surely, 2^{321440221243112} is an apocalyptic number.

It is an amenable number.

321440221243112 is a deficient number, since it is larger than the sum of its proper divisors (286781648379808).

321440221243112 is a wasteful number, since it uses less digits than its factorization.

321440221243112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542116901 (or 542116897 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 321440221243112 its reverse (211342122044123), we get a palindrome (532782343287235).

The spelling of 321440221243112 in words is "three hundred twenty-one trillion, four hundred forty billion, two hundred twenty-one million, two hundred forty-three thousand, one hundred twelve".