12226849965 has 144 divisors (see below), whose sum is σ = 24804988416. Its totient is φ = 5731689600.

The previous prime is 12226849963. The next prime is 12226849969. The reversal of 12226849965 is 56994862221.

12226849965 is a `hidden beast` number, since 12 + 22 + 68 + 499 + 65 = 666.

It is not a de Polignac number, because 12226849965 - 2¹ = 12226849963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12226849963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11185959 + ... + 11187051.

It is an arithmetic number, because the mean of its divisors is an integer number (172256864).

Almost surely, 2^12226849965 is an apocalyptic number.

12226849965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12226849965 is an abundant number, since it is smaller than the sum of its proper divisors (12578138451).

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

12226849965 is an equidigital number, since it uses as much as digits as its factorization.

12226849965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1143 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 12226849965 in words is "twelve billion, two hundred twenty-six million, eight hundred forty-nine thousand, nine hundred sixty-five".