22005071 has 16 divisors (see below), whose sum is σ = 25325568. Its totient is φ = 18933600.

The previous prime is 22005037. The next prime is 22005073. The reversal of 22005071 is 17050022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22005071 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 (22005073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15341 + ... + 16713.

It is an arithmetic number, because the mean of its divisors is an integer number (1582848).

Almost surely, 2^22005071 is an apocalyptic number.

22005071 is a deficient number, since it is larger than the sum of its proper divisors (3320497).

22005071 is a wasteful number, since it uses less digits than its factorization.

22005071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 22005071 is about 4690.9562990930. The cubic root of 22005071 is about 280.2254604138.

Adding to 22005071 its reverse (17050022), we get a palindrome (39055093).

The spelling of 22005071 in words is "twenty-two million, five thousand, seventy-one".