12272842338 has 32 divisors (see below), whose sum is σ = 25162062912. Its totient is φ = 3988358400.

The previous prime is 12272842331. The next prime is 12272842399. The reversal of 12272842338 is 83324827221.

12272842338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12272842338.

It is not an unprimeable number, because it can be changed into a prime (12272842331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 347998 + ... + 381638.

It is an arithmetic number, because the mean of its divisors is an integer number (786314466).

Almost surely, 2^12272842338 is an apocalyptic number.

12272842338 is an abundant number, since it is smaller than the sum of its proper divisors (12889220574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12272842338 is a wasteful number, since it uses less digits than its factorization.

12272842338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35170.

The product of its digits is 258048, while the sum is 42.

The spelling of 12272842338 in words is "twelve billion, two hundred seventy-two million, eight hundred forty-two thousand, three hundred thirty-eight".