422131225 has 12 divisors (see below), whose sum is σ = 526372560. Its totient is φ = 335814800.

The previous prime is 422131223. The next prime is 422131231. The reversal of 422131225 is 522131224.

It is a happy number.

It is not a de Polignac number, because 422131225 - 2¹ = 422131223 is a prime.

It is a super-2 number, since 2×422131225² = 356389542240001250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 422131196 and 422131205.

It is not an unprimeable number, because it can be changed into a prime (422131223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42691 + ... + 51640.

It is an arithmetic number, because the mean of its divisors is an integer number (43864380).

Almost surely, 2^422131225 is an apocalyptic number.

It is an amenable number.

422131225 is a deficient number, since it is larger than the sum of its proper divisors (104241335).

422131225 is a wasteful number, since it uses less digits than its factorization.

422131225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94520 (or 94515 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 422131225 is about 20545.8323024403. The cubic root of 422131225 is about 750.1518063081.

Adding to 422131225 its reverse (522131224), we get a palindrome (944262449).

Subtracting 422131225 from its reverse (522131224), we obtain a palindrome (99999999).

The spelling of 422131225 in words is "four hundred twenty-two million, one hundred thirty-one thousand, two hundred twenty-five".