22104871 has 4 divisors (see below), whose sum is σ = 22197600. Its totient is φ = 22012144.

The previous prime is 22104857. The next prime is 22104893. The reversal of 22104871 is 17840122.

It is a happy number.

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 22104871 - 2⁵ = 22104839 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 (22104821) 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, 46006 + ... + 46483.

It is an arithmetic number, because the mean of its divisors is an integer number (5549400).

Almost surely, 2^22104871 is an apocalyptic number.

22104871 is a deficient number, since it is larger than the sum of its proper divisors (92729).

22104871 is an equidigital number, since it uses as much as digits as its factorization.

22104871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92728.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 22104871 is about 4701.5817551118. The cubic root of 22104871 is about 280.6484587939.

Adding to 22104871 its reverse (17840122), we get a palindrome (39944993).

The spelling of 22104871 in words is "twenty-two million, one hundred four thousand, eight hundred seventy-one".