12221352788783 has 2 divisors, whose sum is σ = 12221352788784. Its totient is φ = 12221352788782.

The previous prime is 12221352788779. The next prime is 12221352788851. The reversal of 12221352788783 is 38788725312221.

It is a weak prime.

It is an emirp because it is prime and its reverse (38788725312221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221352788783 - 2² = 12221352788779 is a prime.

It is a super-3 number, since 3×12221352788783³ (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 not a weakly prime, because it can be changed into another prime (12221352788713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110676394391 + 6110676394392.

It is an arithmetic number, because the mean of its divisors is an integer number (6110676394392).

Almost surely, 2^{12221352788783} is an apocalyptic number.

12221352788783 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221352788783 is an equidigital number, since it uses as much as digits as its factorization.

12221352788783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18063360, while the sum is 59.

The spelling of 12221352788783 in words is "twelve trillion, two hundred twenty-one billion, three hundred fifty-two million, seven hundred eighty-eight thousand, seven hundred eighty-three".