12258227871338 has 4 divisors (see below), whose sum is σ = 18387341807010. Its totient is φ = 6129113935668.

The previous prime is 12258227871289. The next prime is 12258227871349. The reversal of 12258227871338 is 83317872285221.

12258227871338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9901827878089 + 2356399993249 = 3146717^2 + 1535057^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064556967833 + ... + 3064556967836.

Almost surely, 2^{12258227871338} is an apocalyptic number.

12258227871338 is a deficient number, since it is larger than the sum of its proper divisors (6129113935672).

12258227871338 is an equidigital number, since it uses as much as digits as its factorization.

12258227871338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129113935671.

The product of its digits is 18063360, while the sum is 59.

The spelling of 12258227871338 in words is "twelve trillion, two hundred fifty-eight billion, two hundred twenty-seven million, eight hundred seventy-one thousand, three hundred thirty-eight".