12225502577 has 2 divisors, whose sum is σ = 12225502578. Its totient is φ = 12225502576.

The previous prime is 12225502507. The next prime is 12225502579. The reversal of 12225502577 is 77520552221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11065146481 + 1160356096 = 105191^2 + 34064^2 .

It is a cyclic number.

It is not a de Polignac number, because 12225502577 - 2⁸ = 12225502321 is a prime.

Together with 12225502579, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12225502577.

It is not a weakly prime, because it can be changed into another prime (12225502579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112751288 + 6112751289.

It is an arithmetic number, because the mean of its divisors is an integer number (6112751289).

Almost surely, 2^12225502577 is an apocalyptic number.

It is an amenable number.

12225502577 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225502577 is an equidigital number, since it uses as much as digits as its factorization.

12225502577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98000, while the sum is 38.

The spelling of 12225502577 in words is "twelve billion, two hundred twenty-five million, five hundred two thousand, five hundred seventy-seven".