12071225 has 12 divisors (see below), whose sum is σ = 15104316. Its totient is φ = 9569280.

The previous prime is 12071219. The next prime is 12071233. The reversal of 12071225 is 52217021.

It can be written as a sum of positive squares in 6 ways, for example, as 3701776 + 8369449 = 1924^2 + 2893^2 .

It is not a de Polignac number, because 12071225 - 2⁴ = 12071209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12071197 and 12071206.

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 11 ways as a sum of consecutive naturals, for example, 689 + ... + 4961.

It is an arithmetic number, because the mean of its divisors is an integer number (1258693).

Almost surely, 2^12071225 is an apocalyptic number.

It is an amenable number.

12071225 is a deficient number, since it is larger than the sum of its proper divisors (3033091).

12071225 is a wasteful number, since it uses less digits than its factorization.

12071225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396 (or 4391 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12071225 is about 3474.3668487942. The cubic root of 12071225 is about 229.3949123574.

Adding to 12071225 its reverse (52217021), we get a palindrome (64288246).

The spelling of 12071225 in words is "twelve million, seventy-one thousand, two hundred twenty-five".