12221482 has 48 divisors (see below), whose sum is σ = 23528232. Its totient is φ = 4717440.

The previous prime is 12221459. The next prime is 12221483. The reversal of 12221482 is 28412221.

It can be written as a sum of positive squares in 4 ways, for example, as 5764801 + 6456681 = 2401^2 + 2541^2 .

Its product of digits (512) is a multiple of the sum of its prime divisors (256).

It is not an unprimeable number, because it can be changed into a prime (12221483) 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 23 ways as a sum of consecutive naturals, for example, 67432 + ... + 67612.

Almost surely, 2^12221482 is an apocalyptic number.

12221482 is a deficient number, since it is larger than the sum of its proper divisors (11306750).

12221482 is a wasteful number, since it uses less digits than its factorization.

12221482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 256 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

The square root of 12221482 is about 3495.9236261681. The cubic root of 12221482 is about 230.3427906803.

It can be divided in two parts, 1222 and 1482, that added together give a square (2704 = 52²).

The spelling of 12221482 in words is "twelve million, two hundred twenty-one thousand, four hundred eighty-two".