12221352788800 has 84 divisors (see below), whose sum is σ = 30076364918016. Its totient is φ = 4887858572800.

The previous prime is 12221352788783. The next prime is 12221352788851. The reversal of 12221352788800 is 888725312221.

It is a happy number.

It is a super-3 number, since 3×12221352788800³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11007969 + ... + 12067231.

Almost surely, 2^{12221352788800} is an apocalyptic number.

12221352788800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221352788800 is an abundant number, since it is smaller than the sum of its proper divisors (17855012129216).

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

12221352788800 is a wasteful number, since it uses less digits than its factorization.

12221352788800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066496 (or 1066481 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 12221352788800 in words is "twelve trillion, two hundred twenty-one billion, three hundred fifty-two million, seven hundred eighty-eight thousand, eight hundred".