12268388386221 has 32 divisors (see below), whose sum is σ = 17854344604800. Its totient is φ = 7431464705280.

The previous prime is 12268388386187. The next prime is 12268388386237.

12268388386221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12268388386221 - 2²⁷ = 12268254168493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12268388386421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 612521235 + ... + 612541263.

It is an arithmetic number, because the mean of its divisors is an integer number (557948268900).

Almost surely, 2^{12268388386221} is an apocalyptic number.

12268388386221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12268388386221 is a deficient number, since it is larger than the sum of its proper divisors (5585956218579).

12268388386221 is a wasteful number, since it uses less digits than its factorization.

12268388386221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28909.

The product of its digits is 21233664, while the sum is 60.

The spelling of 12268388386221 in words is "twelve trillion, two hundred sixty-eight billion, three hundred eighty-eight million, three hundred eighty-six thousand, two hundred twenty-one".