4452221225 has 12 divisors (see below), whose sum is σ = 5523594384. Its totient is φ = 3559944720.

The previous prime is 4452221219. The next prime is 4452221281. The reversal of 4452221225 is 5221222544.

It is a happy number.

It is not a de Polignac number, because 4452221225 - 2¹² = 4452217129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4862 + ... + 94488.

It is an arithmetic number, because the mean of its divisors is an integer number (460299532).

Almost surely, 2^4452221225 is an apocalyptic number.

It is an amenable number.

4452221225 is a deficient number, since it is larger than the sum of its proper divisors (1071373159).

4452221225 is a wasteful number, since it uses less digits than its factorization.

4452221225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91624 (or 91619 counting only the distinct ones).

The product of its digits is 12800, while the sum is 29.

The square root of 4452221225 is about 66724.9670288416. The cubic root of 4452221225 is about 1645.0997836140.

Adding to 4452221225 its reverse (5221222544), we get a palindrome (9673443769).

The spelling of 4452221225 in words is "four billion, four hundred fifty-two million, two hundred twenty-one thousand, two hundred twenty-five".