12221103 has 4 divisors (see below), whose sum is σ = 16294808. Its totient is φ = 8147400.

The previous prime is 12221089. The next prime is 12221107. The reversal of 12221103 is 30112221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12221103 - 2⁴ = 12221087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221107) 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, 2036848 + ... + 2036853.

It is an arithmetic number, because the mean of its divisors is an integer number (4073702).

Almost surely, 2^12221103 is an apocalyptic number.

12221103 is a deficient number, since it is larger than the sum of its proper divisors (4073705).

12221103 is an equidigital number, since it uses as much as digits as its factorization.

12221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073704.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12221103 is about 3495.8694197581. The cubic root of 12221103 is about 230.3404096046.

Adding to 12221103 its reverse (30112221), we get a palindrome (42333324).

The spelling of 12221103 in words is "twelve million, two hundred twenty-one thousand, one hundred three".