12227532 has 36 divisors (see below), whose sum is σ = 29123640. Its totient is φ = 3992384.

The previous prime is 12227521. The next prime is 12227533. The reversal of 12227532 is 23572221.

It is a happy number.

It is a super-2 number, since 2×12227532² = 299025077622048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12227533) 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, 114223 + ... + 114329.

It is an arithmetic number, because the mean of its divisors is an integer number (808990).

Almost surely, 2^12227532 is an apocalyptic number.

12227532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12227532 is an abundant number, since it is smaller than the sum of its proper divisors (16896108).

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

12227532 is a wasteful number, since it uses less digits than its factorization.

12227532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 201 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 12227532 is about 3496.7888126108. The cubic root of 12227532 is about 230.3807932726.

Adding to 12227532 its reverse (23572221), we get a palindrome (35799753).

The spelling of 12227532 in words is "twelve million, two hundred twenty-seven thousand, five hundred thirty-two".