22225530 has 32 divisors (see below), whose sum is σ = 54785664. Its totient is φ = 5766336.

The previous prime is 22225519. The next prime is 22225537. The reversal of 22225530 is 3552222.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22225497 and 22225506.

It is not an unprimeable number, because it can be changed into a prime (22225537) 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, 8902 + ... + 11121.

It is an arithmetic number, because the mean of its divisors is an integer number (1712052).

Almost surely, 2^22225530 is an apocalyptic number.

22225530 is an abundant number, since it is smaller than the sum of its proper divisors (32560134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22225530 is a wasteful number, since it uses less digits than its factorization.

22225530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20070.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 22225530 is about 4714.3960376701. The cubic root of 22225530 is about 281.1581705143.

Adding to 22225530 its reverse (3552222), we get a palindrome (25777752).

It can be divided in two parts, 222 and 25530, that added together give a palindrome (25752).

The spelling of 22225530 in words is "twenty-two million, two hundred twenty-five thousand, five hundred thirty".