321022312112 has 20 divisors (see below), whose sum is σ = 622933247280. Its totient is φ = 160265345088.

The previous prime is 321022312111. The next prime is 321022312189. The reversal of 321022312112 is 211213220123.

It is not an unprimeable number, because it can be changed into a prime (321022312111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15352412 + ... + 15373307.

It is an arithmetic number, because the mean of its divisors is an integer number (31146662364).

Almost surely, 2^321022312112 is an apocalyptic number.

It is an amenable number.

321022312112 is a deficient number, since it is larger than the sum of its proper divisors (301910935168).

321022312112 is a wasteful number, since it uses less digits than its factorization.

321022312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30726380 (or 30726374 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 321022312112 its reverse (211213220123), we get a palindrome (532235532235).

The spelling of 321022312112 in words is "three hundred twenty-one billion, twenty-two million, three hundred twelve thousand, one hundred twelve".