12272250 has 32 divisors (see below), whose sum is σ = 30633408. Its totient is φ = 3272400.

The previous prime is 12272237. The next prime is 12272257. The reversal of 12272250 is 5227221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12272257) 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 15 ways as a sum of consecutive naturals, for example, 7432 + ... + 8931.

It is an arithmetic number, because the mean of its divisors is an integer number (957294).

Almost surely, 2^12272250 is an apocalyptic number.

12272250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12272250 is an abundant number, since it is smaller than the sum of its proper divisors (18361158).

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

12272250 is a wasteful number, since it uses less digits than its factorization.

12272250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16383 (or 16373 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12272250 is about 3503.1771294070. The cubic root of 12272250 is about 230.6612978172.

Adding to 12272250 its reverse (5227221), we get a palindrome (17499471).

The spelling of 12272250 in words is "twelve million, two hundred seventy-two thousand, two hundred fifty".