220321322000 has 80 divisors (see below), whose sum is σ = 573716790192. Its totient is φ = 81349401600.

The previous prime is 220321321991. The next prime is 220321322033. The reversal of 220321322000 is 223123022.

It can be written as a sum of positive squares in 8 ways, for example, as 50448753664 + 169872568336 = 224608^2 + 412156^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 220321322000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4210949 + ... + 4262948.

Almost surely, 2^220321322000 is an apocalyptic number.

220321322000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220321322000 is an abundant number, since it is smaller than the sum of its proper divisors (353395468192).

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

220321322000 is a wasteful number, since it uses less digits than its factorization.

220321322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8473933 (or 8473917 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 220321322000 its reverse (223123022), we get a palindrome (220544445022).

The spelling of 220321322000 in words is "two hundred twenty billion, three hundred twenty-one million, three hundred twenty-two thousand".