220221103 has 4 divisors (see below), whose sum is σ = 225342568. Its totient is φ = 215099640.

The previous prime is 220221101. The next prime is 220221143. The reversal of 220221103 is 301122022.

220221103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220221103 - 2¹ = 220221101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221101) 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, 2560668 + ... + 2560753.

It is an arithmetic number, because the mean of its divisors is an integer number (56335642).

Almost surely, 2^220221103 is an apocalyptic number.

220221103 is a deficient number, since it is larger than the sum of its proper divisors (5121465).

220221103 is an equidigital number, since it uses as much as digits as its factorization.

220221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121464.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220221103 is about 14839.8484830540. The cubic root of 220221103 is about 603.8832418713.

Adding to 220221103 its reverse (301122022), we get a palindrome (521343125).

The spelling of 220221103 in words is "two hundred twenty million, two hundred twenty-one thousand, one hundred three".