220003220221 has 4 divisors (see below), whose sum is σ = 220020795072. Its totient is φ = 219985645372.

The previous prime is 220003220219. The next prime is 220003220273. The reversal of 220003220221 is 122022300022.

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 220003220221 - 2¹ = 220003220219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220003220195 and 220003220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220003226221) 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, 8768635 + ... + 8793688.

It is an arithmetic number, because the mean of its divisors is an integer number (55005198768).

Almost surely, 2^220003220221 is an apocalyptic number.

It is an amenable number.

220003220221 is a deficient number, since it is larger than the sum of its proper divisors (17574851).

220003220221 is a wasteful number, since it uses less digits than its factorization.

220003220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17574850.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 220003220221 its reverse (122022300022), we get a palindrome (342025520243).

The spelling of 220003220221 in words is "two hundred twenty billion, three million, two hundred twenty thousand, two hundred twenty-one".