11231225 has 6 divisors (see below), whose sum is σ = 13926750. Its totient is φ = 8984960.

The previous prime is 11231219. The next prime is 11231243. The reversal of 11231225 is 52213211.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3182656 + 8048569 = 1784^2 + 2837^2 .

It is not a de Polignac number, because 11231225 - 2¹⁰ = 11230201 is a prime.

It is a super-2 number, since 2×11231225² = 252280830001250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224600 + ... + 224649.

It is an arithmetic number, because the mean of its divisors is an integer number (2321125).

Almost surely, 2^11231225 is an apocalyptic number.

It is an amenable number.

11231225 is a deficient number, since it is larger than the sum of its proper divisors (2695525).

11231225 is an equidigital number, since it uses as much as digits as its factorization.

11231225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449259 (or 449254 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 11231225 is about 3351.3019857960. The cubic root of 11231225 is about 223.9455184783.

Adding to 11231225 its reverse (52213211), we get a palindrome (63444436).

The spelling of 11231225 in words is "eleven million, two hundred thirty-one thousand, two hundred twenty-five".