22011103 has 4 divisors (see below), whose sum is σ = 22070488. Its totient is φ = 21951720.

The previous prime is 22011091. The next prime is 22011109. The reversal of 22011103 is 30111022.

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 22011103 - 2²¹ = 19913951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011109) 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, 29133 + ... + 29878.

It is an arithmetic number, because the mean of its divisors is an integer number (5517622).

Almost surely, 2^22011103 is an apocalyptic number.

22011103 is a deficient number, since it is larger than the sum of its proper divisors (59385).

22011103 is an equidigital number, since it uses as much as digits as its factorization.

22011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59384.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 22011103 is about 4691.5991943046. The cubic root of 22011103 is about 280.2510630813.

Adding to 22011103 its reverse (30111022), we get a palindrome (52122125).

The spelling of 22011103 in words is "twenty-two million, eleven thousand, one hundred three".