12225507 has 8 divisors (see below), whose sum is σ = 18629376. Its totient is φ = 6985992.

The previous prime is 12225491. The next prime is 12225527. The reversal of 12225507 is 70552221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12225507 - 2⁴ = 12225491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12225527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291063 + ... + 291104.

It is an arithmetic number, because the mean of its divisors is an integer number (2328672).

Almost surely, 2^12225507 is an apocalyptic number.

12225507 is a deficient number, since it is larger than the sum of its proper divisors (6403869).

12225507 is an equidigital number, since it uses as much as digits as its factorization.

12225507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582177.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 12225507 is about 3496.4992492492. The cubic root of 12225507 is about 230.3680747926.

Adding to 12225507 its reverse (70552221), we get a palindrome (82777728).

The spelling of 12225507 in words is "twelve million, two hundred twenty-five thousand, five hundred seven".