22209005 has 48 divisors (see below), whose sum is σ = 35239680. Its totient is φ = 13281408.

The previous prime is 22209001. The next prime is 22209017. The reversal of 22209005 is 50090222.

It is not a de Polignac number, because 22209005 - 2² = 22209001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22209001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60332 + ... + 60698.

It is an arithmetic number, because the mean of its divisors is an integer number (734160).

Almost surely, 2^22209005 is an apocalyptic number.

It is an amenable number.

22209005 is a deficient number, since it is larger than the sum of its proper divisors (13030675).

22209005 is a wasteful number, since it uses less digits than its factorization.

22209005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 22209005 is about 4712.6431012755. The cubic root of 22209005 is about 281.0884715280.

Adding to 22209005 its reverse (50090222), we get a palindrome (72299227).

The spelling of 22209005 in words is "twenty-two million, two hundred nine thousand, five".