10121225 has 6 divisors (see below), whose sum is σ = 12550350. Its totient is φ = 8096960.

The previous prime is 10121183. The next prime is 10121233. The reversal of 10121225 is 52212101.

It can be written as a sum of positive squares in 3 ways, for example, as 1658944 + 8462281 = 1288^2 + 2909^2 .

It is not a de Polignac number, because 10121225 - 2⁶ = 10121161 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 202400 + ... + 202449.

It is an arithmetic number, because the mean of its divisors is an integer number (2091725).

Almost surely, 2^10121225 is an apocalyptic number.

It is an amenable number.

10121225 is a deficient number, since it is larger than the sum of its proper divisors (2429125).

10121225 is an equidigital number, since it uses as much as digits as its factorization.

10121225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404859 (or 404854 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 10121225 is about 3181.3872760165. The cubic root of 10121225 is about 216.3105458231.

Adding to 10121225 its reverse (52212101), we get a palindrome (62333326).

The spelling of 10121225 in words is "ten million, one hundred twenty-one thousand, two hundred twenty-five".