321225476000 has 576 divisors, whose sum is σ = 983793807360. Its totient is φ = 102110976000.

The previous prime is 321225475997. The next prime is 321225476017. The reversal of 321225476000 is 674522123.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 119546657 + ... + 119549343.

It is an arithmetic number, because the mean of its divisors is an integer number (1707975360).

Almost surely, 2^321225476000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321225476000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491896903680).

321225476000 is an abundant number, since it is smaller than the sum of its proper divisors (662568331360).

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

321225476000 is a wasteful number, since it uses less digits than its factorization.

321225476000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766 (or 2737 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 321225476000 its reverse (674522123), we get a palindrome (321899998123).

The spelling of 321225476000 in words is "three hundred twenty-one billion, two hundred twenty-five million, four hundred seventy-six thousand".