12242272 has 96 divisors (see below), whose sum is σ = 29804544. Its totient is φ = 4838400.

The previous prime is 12242267. The next prime is 12242291. The reversal of 12242272 is 27224221.

It is a happy number.

12242272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284683 + ... + 284725.

It is an arithmetic number, because the mean of its divisors is an integer number (310464).

Almost surely, 2^12242272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12242272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14902272).

12242272 is an abundant number, since it is smaller than the sum of its proper divisors (17562272).

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

12242272 is a wasteful number, since it uses less digits than its factorization.

12242272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 124 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 12242272 is about 3498.8958258285. The cubic root of 12242272 is about 230.4733289612.

Adding to 12242272 its reverse (27224221), we get a palindrome (39466493).

The spelling of 12242272 in words is "twelve million, two hundred forty-two thousand, two hundred seventy-two".