22240205 has 16 divisors (see below), whose sum is σ = 28842240. Its totient is φ = 16365888.

The previous prime is 22240201. The next prime is 22240223. The reversal of 22240205 is 50204222.

It is a cyclic number.

It is not a de Polignac number, because 22240205 - 2² = 22240201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22240201) 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, 29726 + ... + 30464.

It is an arithmetic number, because the mean of its divisors is an integer number (1802640).

Almost surely, 2^22240205 is an apocalyptic number.

It is an amenable number.

22240205 is a deficient number, since it is larger than the sum of its proper divisors (6602035).

22240205 is a wasteful number, since it uses less digits than its factorization.

22240205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22240205 is about 4715.9521838119. The cubic root of 22240205 is about 281.2200376312.

Adding to 22240205 its reverse (50204222), we get a palindrome (72444427).

The spelling of 22240205 in words is "twenty-two million, two hundred forty thousand, two hundred five".