22442441225 has 6 divisors (see below), whose sum is σ = 27828627150. Its totient is φ = 17953952960.

The previous prime is 22442441221. The next prime is 22442441233. The reversal of 22442441225 is 52214424422.

It can be written as a sum of positive squares in 3 ways, for example, as 1024704121 + 21417737104 = 32011^2 + 146348^2 .

It is not a de Polignac number, because 22442441225 - 2² = 22442441221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22442441191 and 22442441200.

It is not an unprimeable number, because it can be changed into a prime (22442441221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448848800 + ... + 448848849.

It is an arithmetic number, because the mean of its divisors is an integer number (4638104525).

Almost surely, 2^22442441225 is an apocalyptic number.

22442441225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22442441225 is a deficient number, since it is larger than the sum of its proper divisors (5386185925).

22442441225 is an equidigital number, since it uses as much as digits as its factorization.

22442441225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897697659 (or 897697654 counting only the distinct ones).

The product of its digits is 40960, while the sum is 32.

Adding to 22442441225 its reverse (52214424422), we get a palindrome (74656865647).

The spelling of 22442441225 in words is "twenty-two billion, four hundred forty-two million, four hundred forty-one thousand, two hundred twenty-five".