12281104 has 20 divisors (see below), whose sum is σ = 25958160. Its totient is φ = 5582240.

The previous prime is 12281063. The next prime is 12281111. The reversal of 12281104 is 40118221.

It is a happy number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34714 + ... + 35065.

It is an arithmetic number, because the mean of its divisors is an integer number (1297908).

Almost surely, 2^12281104 is an apocalyptic number.

It is an amenable number.

12281104 is an abundant number, since it is smaller than the sum of its proper divisors (13677056).

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

12281104 is a wasteful number, since it uses less digits than its factorization.

12281104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69798 (or 69792 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 12281104 is about 3504.4406115670. The cubic root of 12281104 is about 230.7167558406.

Adding to 12281104 its reverse (40118221), we get a palindrome (52399325).

It can be divided in two parts, 1228 and 1104, that added together give a palindrome (2332).

The spelling of 12281104 in words is "twelve million, two hundred eighty-one thousand, one hundred four".