101125225 has 6 divisors (see below), whose sum is σ = 125395310. Its totient is φ = 80900160.

The previous prime is 101125187. The next prime is 101125237. The reversal of 101125225 is 522521101.

It can be written as a sum of positive squares in 3 ways, for example, as 20502784 + 80622441 = 4528^2 + 8979^2 .

It is not a de Polignac number, because 101125225 - 2¹⁹ = 100600937 is a prime.

It is a super-2 number, since 2×101125225² = 20452622262601250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2022480 + ... + 2022529.

Almost surely, 2^101125225 is an apocalyptic number.

It is an amenable number.

101125225 is a deficient number, since it is larger than the sum of its proper divisors (24270085).

101125225 is an equidigital number, since it uses as much as digits as its factorization.

101125225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045019 (or 4045014 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 101125225 is about 10056.1038678009. The cubic root of 101125225 is about 465.8933379636.

Adding to 101125225 its reverse (522521101), we get a palindrome (623646326).

The spelling of 101125225 in words is "one hundred one million, one hundred twenty-five thousand, two hundred twenty-five".