220000321321 has 4 divisors (see below), whose sum is σ = 240000350544. Its totient is φ = 200000292100.

The previous prime is 220000321309. The next prime is 220000321337. The reversal of 220000321321 is 123123000022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220000321321 - 2⁹ = 220000320809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220000321295 and 220000321304.

It is not an unprimeable number, because it can be changed into a prime (220000321351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10000014595 + ... + 10000014616.

It is an arithmetic number, because the mean of its divisors is an integer number (60000087636).

Almost surely, 2^220000321321 is an apocalyptic number.

It is an amenable number.

220000321321 is a deficient number, since it is larger than the sum of its proper divisors (20000029223).

220000321321 is a wasteful number, since it uses less digits than its factorization.

220000321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000029222.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 220000321321 its reverse (123123000022), we get a palindrome (343123321343).

The spelling of 220000321321 in words is "two hundred twenty billion, three hundred twenty-one thousand, three hundred twenty-one".