1421202262657 has 2 divisors, whose sum is σ = 1421202262658. Its totient is φ = 1421202262656.

The previous prime is 1421202262633. The next prime is 1421202262681. The reversal of 1421202262657 is 7562622021241.

It is a balanced prime because it is at equal distance from previous prime (1421202262633) and next prime (1421202262681).

It can be written as a sum of positive squares in only one way, i.e., 1217913095281 + 203289167376 = 1103591^2 + 450876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421202262657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421202262607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710601131328 + 710601131329.

It is an arithmetic number, because the mean of its divisors is an integer number (710601131329).

Almost surely, 2^{1421202262657} is an apocalyptic number.

It is an amenable number.

1421202262657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421202262657 is an equidigital number, since it uses as much as digits as its factorization.

1421202262657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 40.

Adding to 1421202262657 its reverse (7562622021241), we get a palindrome (8983824283898).

The spelling of 1421202262657 in words is "one trillion, four hundred twenty-one billion, two hundred two million, two hundred sixty-two thousand, six hundred fifty-seven".