12221144552763 has 24 divisors (see below), whose sum is σ = 17986224962160. Its totient is φ = 7993531465920.

The previous prime is 12221144552741. The next prime is 12221144552777. The reversal of 12221144552763 is 36725544112221.

12221144552763 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 114 + 4 + 5 + 527 + 6 + 3 = 666.

It is not a de Polignac number, because 12221144552763 - 2¹⁰ = 12221144551739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221144559763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23989548 + ... + 24493686.

It is an arithmetic number, because the mean of its divisors is an integer number (749426040090).

Almost surely, 2^{12221144552763} is an apocalyptic number.

12221144552763 is a deficient number, since it is larger than the sum of its proper divisors (5765080409397).

12221144552763 is a wasteful number, since it uses less digits than its factorization.

12221144552763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555019 (or 555016 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

Adding to 12221144552763 its reverse (36725544112221), we get a palindrome (48946688664984).

The spelling of 12221144552763 in words is "twelve trillion, two hundred twenty-one billion, one hundred forty-four million, five hundred fifty-two thousand, seven hundred sixty-three".