321223221220000 has 120 divisors (see below), whose sum is σ = 862098881700672. Its totient is φ = 116808444000000.

The previous prime is 321223221219991. The next prime is 321223221220021. The reversal of 321223221220000 is 22122322123.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 729832776 + ... + 730272775.

Almost surely, 2^{321223221220000} is an apocalyptic number.

It is an amenable number.

321223221220000 is an abundant number, since it is smaller than the sum of its proper divisors (540875660480672).

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

321223221220000 is a wasteful number, since it uses less digits than its factorization.

321223221220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460105592 (or 1460105569 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 321223221220000 its reverse (22122322123), we get a palindrome (321245343542123).

The spelling of 321223221220000 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, two hundred twenty-one million, two hundred twenty thousand".