12144505226 has 32 divisors (see below), whose sum is σ = 21059654400. Its totient is φ = 5144832000.

The previous prime is 12144505213. The next prime is 12144505229. The reversal of 12144505226 is 62250544121.

It is a super-2 number, since 2×12144505226² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12144505192 and 12144505201.

It is not an unprimeable number, because it can be changed into a prime (12144505229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899675 + ... + 913073.

It is an arithmetic number, because the mean of its divisors is an integer number (658114200).

Almost surely, 2^12144505226 is an apocalyptic number.

12144505226 is a deficient number, since it is larger than the sum of its proper divisors (8915149174).

12144505226 is a wasteful number, since it uses less digits than its factorization.

12144505226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14150.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 12144505226 in words is "twelve billion, one hundred forty-four million, five hundred five thousand, two hundred twenty-six".