321022412223402 has 32 divisors (see below), whose sum is σ = 642297826015488. Its totient is φ = 106965311656896.

The previous prime is 321022412223389. The next prime is 321022412223431. The reversal of 321022412223402 is 204322214220123.

It is a self number, because there is not a number n which added to its sum of digits gives 321022412223402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163637188 + ... + 165587360.

It is an arithmetic number, because the mean of its divisors is an integer number (20071807062984).

Almost surely, 2^{321022412223402} is an apocalyptic number.

321022412223402 is an abundant number, since it is smaller than the sum of its proper divisors (321275413792086).

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

321022412223402 is a wasteful number, since it uses less digits than its factorization.

321022412223402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960974.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 321022412223402 its reverse (204322214220123), we get a palindrome (525344626443525).

The spelling of 321022412223402 in words is "three hundred twenty-one trillion, twenty-two billion, four hundred twelve million, two hundred twenty-three thousand, four hundred two".