12216152 has 32 divisors (see below), whose sum is σ = 24932880. Its totient is φ = 5577600.

The previous prime is 12216137. The next prime is 12216161. The reversal of 12216152 is 25161221.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9923 + ... + 11085.

Almost surely, 2^12216152 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 12216152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12466440).

12216152 is an abundant number, since it is smaller than the sum of its proper divisors (12716728).

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

12216152 is a wasteful number, since it uses less digits than its factorization.

12216152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1279 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 12216152 is about 3495.1612266103. The cubic root of 12216152 is about 230.3093003176.

Adding to 12216152 its reverse (25161221), we get a palindrome (37377373).

The spelling of 12216152 in words is "twelve million, two hundred sixteen thousand, one hundred fifty-two".