12226066537428 has 24 divisors (see below), whose sum is σ = 31697209541760. Its totient is φ = 4075355512440.

The previous prime is 12226066537427. The next prime is 12226066537457. The reversal of 12226066537428 is 82473566062221.

12226066537428 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 6 + 0 + 66 + 537 + 42 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12226066537427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56602159788 + ... + 56602160003.

It is an arithmetic number, because the mean of its divisors is an integer number (1320717064240).

Almost surely, 2^{12226066537428} is an apocalyptic number.

12226066537428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12226066537428 is an abundant number, since it is smaller than the sum of its proper divisors (19471143004332).

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

12226066537428 is a wasteful number, since it uses less digits than its factorization.

12226066537428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113204319804 (or 113204319796 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 12226066537428 in words is "twelve trillion, two hundred twenty-six billion, sixty-six million, five hundred thirty-seven thousand, four hundred twenty-eight".