12213312131281 has 2 divisors, whose sum is σ = 12213312131282. Its totient is φ = 12213312131280.

The previous prime is 12213312131269. The next prime is 12213312131303. The reversal of 12213312131281 is 18213121331221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11982951489600 + 230360641681 = 3461640^2 + 479959^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213312131281 - 2¹⁵ = 12213312098513 is a prime.

It is a super-2 number, since 2×12213312131281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12213312131231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106656065640 + 6106656065641.

It is an arithmetic number, because the mean of its divisors is an integer number (6106656065641).

Almost surely, 2^{12213312131281} is an apocalyptic number.

It is an amenable number.

12213312131281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213312131281 is an equidigital number, since it uses as much as digits as its factorization.

12213312131281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The spelling of 12213312131281 in words is "twelve trillion, two hundred thirteen billion, three hundred twelve million, one hundred thirty-one thousand, two hundred eighty-one".