12226066537457 has 2 divisors, whose sum is σ = 12226066537458. Its totient is φ = 12226066537456.

The previous prime is 12226066537427. The next prime is 12226066537459. The reversal of 12226066537457 is 75473566062221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11964985393936 + 261081143521 = 3459044^2 + 510961^2 .

It is an emirp because it is prime and its reverse (75473566062221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12226066537457 - 2²² = 12226062343153 is a prime.

Together with 12226066537459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12226066537459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113033268728 + 6113033268729.

It is an arithmetic number, because the mean of its divisors is an integer number (6113033268729).

Almost surely, 2^{12226066537457} is an apocalyptic number.

It is an amenable number.

12226066537457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226066537457 is an equidigital number, since it uses as much as digits as its factorization.

12226066537457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 12226066537457 in words is "twelve trillion, two hundred twenty-six billion, sixty-six million, five hundred thirty-seven thousand, four hundred fifty-seven".