12225123 has 12 divisors (see below), whose sum is σ = 18034848. Its totient is φ = 7976400.

The previous prime is 12225107. The next prime is 12225149. The reversal of 12225123 is 32152221.

12225123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12225123 - 2⁴ = 12225107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12225096 and 12225105.

It is not an unprimeable number, because it can be changed into a prime (12225223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14028 + ... + 14873.

It is an arithmetic number, because the mean of its divisors is an integer number (1502904).

Almost surely, 2^12225123 is an apocalyptic number.

12225123 is a deficient number, since it is larger than the sum of its proper divisors (5809725).

12225123 is a wasteful number, since it uses less digits than its factorization.

12225123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28954 (or 28951 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 12225123 is about 3496.4443367513. Note that the first 3 decimals coincide. The cubic root of 12225123 is about 230.3656628336.

Adding to 12225123 its reverse (32152221), we get a palindrome (44377344).

The spelling of 12225123 in words is "twelve million, two hundred twenty-five thousand, one hundred twenty-three".