12211636369 has 2 divisors, whose sum is σ = 12211636370. Its totient is φ = 12211636368.

The previous prime is 12211636363. The next prime is 12211636387. The reversal of 12211636369 is 96363611221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9992001600 + 2219634769 = 99960^2 + 47113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211636369 is a prime.

It is a super-2 number, since 2×12211636369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12211636363) 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 as a sum of consecutive naturals, namely, 6105818184 + 6105818185.

It is an arithmetic number, because the mean of its divisors is an integer number (6105818185).

Almost surely, 2^12211636369 is an apocalyptic number.

It is an amenable number.

12211636369 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211636369 is an equidigital number, since it uses as much as digits as its factorization.

12211636369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The spelling of 12211636369 in words is "twelve billion, two hundred eleven million, six hundred thirty-six thousand, three hundred sixty-nine".