2220001603 has 4 divisors (see below), whose sum is σ = 2220609688. Its totient is φ = 2219393520.

The previous prime is 2220001579. The next prime is 2220001643. The reversal of 2220001603 is 3061000222.

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 2220001603 - 2¹⁷ = 2219870531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220001643) 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, 298533 + ... + 305878.

It is an arithmetic number, because the mean of its divisors is an integer number (555152422).

Almost surely, 2^2220001603 is an apocalyptic number.

2220001603 is a deficient number, since it is larger than the sum of its proper divisors (608085).

2220001603 is an equidigital number, since it uses as much as digits as its factorization.

2220001603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608084.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2220001603 is about 47116.8929684460. The cubic root of 2220001603 is about 1304.5210640064.

Adding to 2220001603 its reverse (3061000222), we get a palindrome (5281001825).

The spelling of 2220001603 in words is "two billion, two hundred twenty million, one thousand, six hundred three".