422210225 has 6 divisors (see below), whose sum is σ = 523540710. Its totient is φ = 337768160.

The previous prime is 422210221. The next prime is 422210227. The reversal of 422210225 is 522012224.

It can be written as a sum of positive squares in 3 ways, for example, as 6091024 + 416119201 = 2468^2 + 20399^2 .

It is not a de Polignac number, because 422210225 - 2² = 422210221 is a prime.

It is a super-2 number, since 2×422210225² = 356522948189101250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 422210197 and 422210206.

It is not an unprimeable number, because it can be changed into a prime (422210221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8444180 + ... + 8444229.

It is an arithmetic number, because the mean of its divisors is an integer number (87256785).

Almost surely, 2^422210225 is an apocalyptic number.

It is an amenable number.

422210225 is a deficient number, since it is larger than the sum of its proper divisors (101330485).

422210225 is a wasteful number, since it uses less digits than its factorization.

422210225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16888419 (or 16888414 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 422210225 is about 20547.7547435237. The cubic root of 422210225 is about 750.1985992583.

Adding to 422210225 its reverse (522012224), we get a palindrome (944222449).

The spelling of 422210225 in words is "four hundred twenty-two million, two hundred ten thousand, two hundred twenty-five".