12225018605938 has 16 divisors (see below), whose sum is σ = 18973794997080. Its totient is φ = 5900507796736.

The previous prime is 12225018605893. The next prime is 12225018606049. The reversal of 12225018605938 is 83950681052221.

It can be written as a sum of positive squares in 4 ways, for example, as 11471044193449 + 753974412489 = 3386893^2 + 868317^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21598981 + ... + 22157752.

Almost surely, 2^{12225018605938} is an apocalyptic number.

12225018605938 is a deficient number, since it is larger than the sum of its proper divisors (6748776391142).

12225018605938 is a wasteful number, since it uses less digits than its factorization.

12225018605938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43761581.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 12225018605938 in words is "twelve trillion, two hundred twenty-five billion, eighteen million, six hundred five thousand, nine hundred thirty-eight".