12144435225 has 96 divisors (see below), whose sum is σ = 22395899904. Its totient is φ = 5766508800.

The previous prime is 12144435169. The next prime is 12144435301. The reversal of 12144435225 is 52253444121.

12144435225 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 12144435225 - 2⁸ = 12144434969 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13389222 + ... + 13390128.

It is an arithmetic number, because the mean of its divisors is an integer number (233290624).

Almost surely, 2^12144435225 is an apocalyptic number.

12144435225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12144435225 is a deficient number, since it is larger than the sum of its proper divisors (10251464679).

12144435225 is a wasteful number, since it uses less digits than its factorization.

12144435225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1402 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

Adding to 12144435225 its reverse (52253444121), we get a palindrome (64397879346).

The spelling of 12144435225 in words is "twelve billion, one hundred forty-four million, four hundred thirty-five thousand, two hundred twenty-five".