2221163603 has 4 divisors (see below), whose sum is σ = 2230696728. Its totient is φ = 2211630480.

The previous prime is 2221163587. The next prime is 2221163617. The reversal of 2221163603 is 3063611222.

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 2221163603 - 2⁴ = 2221163587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221163663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4766213 + ... + 4766678.

It is an arithmetic number, because the mean of its divisors is an integer number (557674182).

Almost surely, 2^2221163603 is an apocalyptic number.

2221163603 is a deficient number, since it is larger than the sum of its proper divisors (9533125).

2221163603 is an equidigital number, since it uses as much as digits as its factorization.

2221163603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9533124.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2221163603 is about 47129.2223890868. Note that the first 3 decimals coincide. The cubic root of 2221163603 is about 1304.7486297693.

Adding to 2221163603 its reverse (3063611222), we get a palindrome (5284774825).

The spelling of 2221163603 in words is "two billion, two hundred twenty-one million, one hundred sixty-three thousand, six hundred three".