321223221030400 has 120 divisors (see below), whose sum is σ = 857075289623784. Its totient is φ = 118605496934400.

The previous prime is 321223221030373. The next prime is 321223221030403. The reversal of 321223221030400 is 4030122322123.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321223221030403) 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 11 ways as a sum of consecutive naturals, for example, 965047606 + ... + 965380405.

Almost surely, 2^{321223221030400} is an apocalyptic number.

It is an amenable number.

321223221030400 is an abundant number, since it is smaller than the sum of its proper divisors (535852068593384).

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

321223221030400 is a wasteful number, since it uses less digits than its factorization.

321223221030400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930428052 (or 1930428031 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 321223221030400 its reverse (4030122322123), we get a palindrome (325253343352523).

The spelling of 321223221030400 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, two hundred twenty-one million, thirty thousand, four hundred".