22112003 has 2 divisors, whose sum is σ = 22112004. Its totient is φ = 22112002.

The previous prime is 22111979. The next prime is 22112009. The reversal of 22112003 is 30021122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22112003 - 2⁶ = 22111939 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22112009) 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 as a sum of consecutive naturals, namely, 11056001 + 11056002.

It is an arithmetic number, because the mean of its divisors is an integer number (11056002).

Almost surely, 2^22112003 is an apocalyptic number.

22112003 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112003 is an equidigital number, since it uses as much as digits as its factorization.

22112003 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22112003 is about 4702.3401620895. The cubic root of 22112003 is about 280.6786387119.

Adding to 22112003 its reverse (30021122), we get a palindrome (52133125).

The spelling of 22112003 in words is "twenty-two million, one hundred twelve thousand, three".