2220003221 has 4 divisors (see below), whose sum is σ = 2251270944. Its totient is φ = 2188735500.

The previous prime is 2220003169. The next prime is 2220003223. The reversal of 2220003221 is 1223000222.

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 2220003221 - 2¹⁸ = 2219741077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2220003196 and 2220003205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220003223) 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, 15633755 + ... + 15633896.

It is an arithmetic number, because the mean of its divisors is an integer number (562817736).

Almost surely, 2^2220003221 is an apocalyptic number.

It is an amenable number.

2220003221 is a deficient number, since it is larger than the sum of its proper divisors (31267723).

2220003221 is an equidigital number, since it uses as much as digits as its factorization.

2220003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31267722.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2220003221 is about 47116.9101385055. The cubic root of 2220003221 is about 1304.5213809303.

Adding to 2220003221 its reverse (1223000222), we get a palindrome (3443003443).

Subtracting from 2220003221 its reverse (1223000222), we obtain a cube (997002999 = 999³).

The spelling of 2220003221 in words is "two billion, two hundred twenty million, three thousand, two hundred twenty-one".