12221000002201 has 2 divisors, whose sum is σ = 12221000002202. Its totient is φ = 12221000002200.

The previous prime is 12221000002187. The next prime is 12221000002247. The reversal of 12221000002201 is 10220000012221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9619953576025 + 2601046426176 = 3101605^2 + 1612776^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221000002201 - 2³⁷ = 12083561048729 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221000002261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110500001100 + 6110500001101.

It is an arithmetic number, because the mean of its divisors is an integer number (6110500001101).

Almost surely, 2^{12221000002201} is an apocalyptic number.

It is an amenable number.

12221000002201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221000002201 is an equidigital number, since it uses as much as digits as its factorization.

12221000002201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12221000002201 its reverse (10220000012221), we get a palindrome (22441000014422).

The spelling of 12221000002201 in words is "twelve trillion, two hundred twenty-one billion, two thousand, two hundred one".