321022401010421 has 24 divisors (see below), whose sum is σ = 356292158144832. Its totient is φ = 288999479419200.

The previous prime is 321022401010343. The next prime is 321022401010459. The reversal of 321022401010421 is 124010104220123.

It is not a de Polignac number, because 321022401010421 - 2²⁶ = 321022333901557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321022401010621) 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, 714491081 + ... + 714940241.

It is an arithmetic number, because the mean of its divisors is an integer number (14845506589368).

Almost surely, 2^{321022401010421} is an apocalyptic number.

It is an amenable number.

321022401010421 is a deficient number, since it is larger than the sum of its proper divisors (35269757134411).

321022401010421 is a wasteful number, since it uses less digits than its factorization.

321022401010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506633 (or 506622 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 321022401010421 its reverse (124010104220123), we get a palindrome (445032505230544).

The spelling of 321022401010421 in words is "three hundred twenty-one trillion, twenty-two billion, four hundred one million, ten thousand, four hundred twenty-one".