12226304646 has 16 divisors (see below), whose sum is σ = 27169566000. Its totient is φ = 4075434864.

The previous prime is 12226304639. The next prime is 12226304663. The reversal of 12226304646 is 64640362221.

12226304646 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 6 + 3 + 0 + 4 + 646 = 666.

It is a super-3 number, since 3×12226304646³ (a number of 31 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12226304646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113206471 + ... + 113206578.

It is an arithmetic number, because the mean of its divisors is an integer number (1698097875).

Almost surely, 2^12226304646 is an apocalyptic number.

12226304646 is an abundant number, since it is smaller than the sum of its proper divisors (14943261354).

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

12226304646 is a wasteful number, since it uses less digits than its factorization.

12226304646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226413060 (or 226413054 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 12226304646 its reverse (64640362221), we get a palindrome (76866666867).

The spelling of 12226304646 in words is "twelve billion, two hundred twenty-six million, three hundred four thousand, six hundred forty-six".