321243421122 has 80 divisors (see below), whose sum is σ = 775699404480. Its totient is φ = 98779717728.

The previous prime is 321243421097. The next prime is 321243421123. The reversal of 321243421122 is 221124342123.

321243421122 is a `hidden beast` number, since 3 + 2 + 12 + 434 + 211 + 2 + 2 = 666.

It is a super-2 number, since 2×321243421122² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (321243421123) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 3234333 + ... + 3332175.

It is an arithmetic number, because the mean of its divisors is an integer number (9696242556).

Almost surely, 2^321243421122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321243421122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387849702240).

321243421122 is an abundant number, since it is smaller than the sum of its proper divisors (454455983358).

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

321243421122 is a wasteful number, since it uses less digits than its factorization.

321243421122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99429 (or 99420 counting only the distinct ones).

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

Adding to 321243421122 its reverse (221124342123), we get a palindrome (542367763245).

The spelling of 321243421122 in words is "three hundred twenty-one billion, two hundred forty-three million, four hundred twenty-one thousand, one hundred twenty-two".