2203220221 has 16 divisors (see below), whose sum is σ = 2343571200. Its totient is φ = 2065428288.

The previous prime is 2203220207. The next prime is 2203220231. The reversal of 2203220221 is 1220223022.

It is not a de Polignac number, because 2203220221 - 2¹³ = 2203212029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2203220195 and 2203220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203220231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751260 + ... + 754186.

It is an arithmetic number, because the mean of its divisors is an integer number (146473200).

Almost surely, 2^2203220221 is an apocalyptic number.

It is an amenable number.

2203220221 is a deficient number, since it is larger than the sum of its proper divisors (140350979).

2203220221 is a wasteful number, since it uses less digits than its factorization.

2203220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348.

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

The square root of 2203220221 is about 46938.4727169515. The cubic root of 2203220221 is about 1301.2257120149.

Adding to 2203220221 its reverse (1220223022), we get a palindrome (3423443243).

The spelling of 2203220221 in words is "two billion, two hundred three million, two hundred twenty thousand, two hundred twenty-one".