12281124 has 24 divisors (see below), whose sum is σ = 28717920. Its totient is φ = 4084864.

The previous prime is 12281117. The next prime is 12281131. The reversal of 12281124 is 42118221.

12281124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12281117) and next prime (12281131).

It is a self number, because there is not a number n which added to its sum of digits gives 12281124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7132 + ... + 8684.

It is an arithmetic number, because the mean of its divisors is an integer number (1196580).

Almost surely, 2^12281124 is an apocalyptic number.

It is an amenable number.

12281124 is an abundant number, since it is smaller than the sum of its proper divisors (16436796).

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

12281124 is a wasteful number, since it uses less digits than its factorization.

12281124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 2217 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 12281124 is about 3504.4434650883. The cubic root of 12281124 is about 230.7168810827.

Adding to 12281124 its reverse (42118221), we get a palindrome (54399345).

The spelling of 12281124 in words is "twelve million, two hundred eighty-one thousand, one hundred twenty-four".