22104771 has 32 divisors (see below), whose sum is σ = 34890240. Its totient is φ = 12317184.

The previous prime is 22104749. The next prime is 22104787. The reversal of 22104771 is 17740122.

It is not a de Polignac number, because 22104771 - 2⁹ = 22104259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22104701) 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 31 ways as a sum of consecutive naturals, for example, 16395 + ... + 17691.

It is an arithmetic number, because the mean of its divisors is an integer number (1090320).

Almost surely, 2^22104771 is an apocalyptic number.

22104771 is a deficient number, since it is larger than the sum of its proper divisors (12785469).

22104771 is a wasteful number, since it uses less digits than its factorization.

22104771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 22104771 is about 4701.5711203809. The cubic root of 22104771 is about 280.6480355857.

Adding to 22104771 its reverse (17740122), we get a palindrome (39844893).

The spelling of 22104771 in words is "twenty-two million, one hundred four thousand, seven hundred seventy-one".