12221211303247 has 2 divisors, whose sum is σ = 12221211303248. Its totient is φ = 12221211303246.

The previous prime is 12221211303227. The next prime is 12221211303313. The reversal of 12221211303247 is 74230311212221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221211303247 is a prime.

It is a super-2 number, since 2×12221211303247² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221211303227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110605651623 + 6110605651624.

It is an arithmetic number, because the mean of its divisors is an integer number (6110605651624).

Almost surely, 2^{12221211303247} is an apocalyptic number.

12221211303247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221211303247 is an equidigital number, since it uses as much as digits as its factorization.

12221211303247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 12221211303247 its reverse (74230311212221), we get a palindrome (86451522515468).

The spelling of 12221211303247 in words is "twelve trillion, two hundred twenty-one billion, two hundred eleven million, three hundred three thousand, two hundred forty-seven".