4224224225 has 24 divisors (see below), whose sum is σ = 5655205752. Its totient is φ = 3111552000.

The previous prime is 4224224201. The next prime is 4224224227. The reversal of 4224224225 is 5224224224.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 88190881 + 4136033344 = 9391^2 + 64312^2 .

It is not a de Polignac number, because 4224224225 - 2²² = 4220029921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4224224227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114119 + ... + 146531.

It is an arithmetic number, because the mean of its divisors is an integer number (235633573).

Almost surely, 2^4224224225 is an apocalyptic number.

It is an amenable number.

4224224225 is a deficient number, since it is larger than the sum of its proper divisors (1430981527).

4224224225 is a wasteful number, since it uses less digits than its factorization.

4224224225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32837 (or 32832 counting only the distinct ones).

The product of its digits is 20480, while the sum is 29.

The square root of 4224224225 is about 64994.0322260436. The cubic root of 4224224225 is about 1616.5246108691.

Adding to 4224224225 its reverse (5224224224), we get a palindrome (9448448449).

Subtracting 4224224225 from its reverse (5224224224), we obtain a palindrome (999999999).

The spelling of 4224224225 in words is "four billion, two hundred twenty-four million, two hundred twenty-four thousand, two hundred twenty-five".