12271354237577 has 2 divisors, whose sum is σ = 12271354237578. Its totient is φ = 12271354237576.

The previous prime is 12271354237469. The next prime is 12271354237619. The reversal of 12271354237577 is 77573245317221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10576473118201 + 1694881119376 = 3252149^2 + 1301876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12271354237577 is a prime.

It is a super-2 number, since 2×12271354237577² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12271354236577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6135677118788 + 6135677118789.

It is an arithmetic number, because the mean of its divisors is an integer number (6135677118789).

Almost surely, 2^{12271354237577} is an apocalyptic number.

It is an amenable number.

12271354237577 is a deficient number, since it is larger than the sum of its proper divisors (1).

12271354237577 is an equidigital number, since it uses as much as digits as its factorization.

12271354237577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17287200, while the sum is 56.

The spelling of 12271354237577 in words is "twelve trillion, two hundred seventy-one billion, three hundred fifty-four million, two hundred thirty-seven thousand, five hundred seventy-seven".