12252225 has 12 divisors (see below), whose sum is σ = 20257136. Its totient is φ = 6534480.

The previous prime is 12252197. The next prime is 12252259. The reversal of 12252225 is 52225221.

12252225 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12252225 - 2⁸ = 12251969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81607 + ... + 81756.

Almost surely, 2^12252225 is an apocalyptic number.

12252225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12252225 is a deficient number, since it is larger than the sum of its proper divisors (8004911).

12252225 is a wasteful number, since it uses less digits than its factorization.

12252225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163376 (or 163371 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 12252225 is about 3500.3178427109. The cubic root of 12252225 is about 230.5357705209.

Adding to 12252225 its reverse (52225221), we get a palindrome (64477446).

The spelling of 12252225 in words is "twelve million, two hundred fifty-two thousand, two hundred twenty-five".