12221200212131 has 2 divisors, whose sum is σ = 12221200212132. Its totient is φ = 12221200212130.

The previous prime is 12221200212113. The next prime is 12221200212139. The reversal of 12221200212131 is 13121200212221.

Together with previous prime (12221200212113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221200212131 - 2¹⁰ = 12221200211107 is a prime.

It is a super-2 number, since 2×12221200212131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12221200212139) 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, 6110600106065 + 6110600106066.

It is an arithmetic number, because the mean of its divisors is an integer number (6110600106066).

Almost surely, 2^{12221200212131} is an apocalyptic number.

12221200212131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221200212131 is an equidigital number, since it uses as much as digits as its factorization.

12221200212131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12221200212131 its reverse (13121200212221), we get a palindrome (25342400424352).

The spelling of 12221200212131 in words is "twelve trillion, two hundred twenty-one billion, two hundred million, two hundred twelve thousand, one hundred thirty-one".