12252312 has 48 divisors (see below), whose sum is σ = 33345000. Its totient is φ = 4064256.

The previous prime is 12252301. The next prime is 12252319. The reversal of 12252312 is 21325221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12252319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27064 + ... + 27512.

Almost surely, 2^12252312 is an apocalyptic number.

12252312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12252312 is an abundant number, since it is smaller than the sum of its proper divisors (21092688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12252312 is a wasteful number, since it uses less digits than its factorization.

12252312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 833 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 12252312 is about 3500.3302701317. The cubic root of 12252312 is about 230.5363161787.

Adding to 12252312 its reverse (21325221), we get a palindrome (33577533).

The spelling of 12252312 in words is "twelve million, two hundred fifty-two thousand, three hundred twelve".