12101225 has 12 divisors (see below), whose sum is σ = 15290316. Its totient is φ = 9497280.

The previous prime is 12101179. The next prime is 12101227. The reversal of 12101225 is 52210121.

12101225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 212521 + 11888704 = 461^2 + 3448^2 .

It is not a de Polignac number, because 12101225 - 2⁸ = 12100969 is a prime.

It is a super-3 number, since 3×12101225³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3242 + ... + 5891.

It is an arithmetic number, because the mean of its divisors is an integer number (1274193).

Almost surely, 2^12101225 is an apocalyptic number.

It is an amenable number.

12101225 is a deficient number, since it is larger than the sum of its proper divisors (3189091).

12101225 is an equidigital number, since it uses as much as digits as its factorization.

12101225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196 (or 9191 counting only the distinct ones).

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

The square root of 12101225 is about 3478.6815030986. The cubic root of 12101225 is about 229.5847896397.

Adding to 12101225 its reverse (52210121), we get a palindrome (64311346).

The spelling of 12101225 in words is "twelve million, one hundred one thousand, two hundred twenty-five".