22163205 has 8 divisors (see below), whose sum is σ = 35461152. Its totient is φ = 11820368.

The previous prime is 22163201. The next prime is 22163261. The reversal of 22163205 is 50236122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22163205 - 2² = 22163201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163201) 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 7 ways as a sum of consecutive naturals, for example, 738759 + ... + 738788.

It is an arithmetic number, because the mean of its divisors is an integer number (4432644).

Almost surely, 2^22163205 is an apocalyptic number.

It is an amenable number.

22163205 is a deficient number, since it is larger than the sum of its proper divisors (13297947).

22163205 is a wasteful number, since it uses less digits than its factorization.

22163205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477555.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22163205 is about 4707.7813245732. The cubic root of 22163205 is about 280.8951158487.

Adding to 22163205 its reverse (50236122), we get a palindrome (72399327).

The spelling of 22163205 in words is "twenty-two million, one hundred sixty-three thousand, two hundred five".