22104225 has 96 divisors (see below), whose sum is σ = 47913600. Its totient is φ = 9849600.

The previous prime is 22104221. The next prime is 22104227. The reversal of 22104225 is 52240122.

It is not a de Polignac number, because 22104225 - 2² = 22104221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22104198 and 22104207.

It is not an unprimeable number, because it can be changed into a prime (22104221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 96411 + ... + 96639.

It is an arithmetic number, because the mean of its divisors is an integer number (499100).

Almost surely, 2^22104225 is an apocalyptic number.

22104225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22104225 is an abundant number, since it is smaller than the sum of its proper divisors (25809375).

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

22104225 is a wasteful number, since it uses less digits than its factorization.

22104225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22104225 is about 4701.5130543262. The cubic root of 22104225 is about 280.6457248464.

Adding to 22104225 its reverse (52240122), we get a palindrome (74344347).

The spelling of 22104225 in words is "twenty-two million, one hundred four thousand, two hundred twenty-five".