12122724 has 24 divisors (see below), whose sum is σ = 28351008. Its totient is φ = 4031680.

The previous prime is 12122723. The next prime is 12122807. The reversal of 12122724 is 42722121.

It is a self number, because there is not a number n which added to its sum of digits gives 12122724.

It is not an unprimeable number, because it can be changed into a prime (12122723) 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 7 ways as a sum of consecutive naturals, for example, 6184 + ... + 7904.

It is an arithmetic number, because the mean of its divisors is an integer number (1181292).

Almost surely, 2^12122724 is an apocalyptic number.

It is an amenable number.

12122724 is an abundant number, since it is smaller than the sum of its proper divisors (16228284).

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

12122724 is a wasteful number, since it uses less digits than its factorization.

12122724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315 (or 2313 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 12122724 is about 3481.7702394041. The cubic root of 12122724 is about 229.7206690865.

Adding to 12122724 its reverse (42722121), we get a palindrome (54844845).

The spelling of 12122724 in words is "twelve million, one hundred twenty-two thousand, seven hundred twenty-four".