2221103 has 4 divisors (see below), whose sum is σ = 2238720. Its totient is φ = 2203488.

The previous prime is 2221097. The next prime is 2221111. The reversal of 2221103 is 3011222.

It is a happy number.

2221103 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, and also an emirpimes, since its reverse is a distinct semiprime: 3011222 = 2 ⋅1505611.

It is a cyclic number.

It is not a de Polignac number, because 2221103 - 2¹⁸ = 1958959 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221183) 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, 8618 + ... + 8871.

It is an arithmetic number, because the mean of its divisors is an integer number (559680).

2^2221103 is an apocalyptic number.

2221103 is a deficient number, since it is larger than the sum of its proper divisors (17617).

2221103 is a wasteful number, since it uses less digits than its factorization.

2221103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17616.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2221103 is about 1490.3365391750. The cubic root of 2221103 is about 130.4736763256.

Adding to 2221103 its reverse (3011222), we get a palindrome (5232325).

The spelling of 2221103 in words is "two million, two hundred twenty-one thousand, one hundred three".