102200225 has 6 divisors (see below), whose sum is σ = 126728310. Its totient is φ = 81760160.

The previous prime is 102200191. The next prime is 102200227. The reversal of 102200225 is 522002201.

It can be written as a sum of positive squares in 3 ways, for example, as 28561 + 102171664 = 169^2 + 10108^2 .

It is not a de Polignac number, because 102200225 - 2⁸ = 102199969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102200227) 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, 2043980 + ... + 2044029.

It is an arithmetic number, because the mean of its divisors is an integer number (21121385).

Almost surely, 2^102200225 is an apocalyptic number.

It is an amenable number.

102200225 is a deficient number, since it is larger than the sum of its proper divisors (24528085).

102200225 is an equidigital number, since it uses as much as digits as its factorization.

102200225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088019 (or 4088014 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 102200225 is about 10109.4126931291. The cubic root of 102200225 is about 467.5383975249.

Adding to 102200225 its reverse (522002201), we get a palindrome (624202426).

The spelling of 102200225 in words is "one hundred two million, two hundred thousand, two hundred twenty-five".