1220777507713 has 2 divisors, whose sum is σ = 1220777507714. Its totient is φ = 1220777507712.

The previous prime is 1220777507711. The next prime is 1220777507753. The reversal of 1220777507713 is 3177057770221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1100585631744 + 120191875969 = 1049088^2 + 346687^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220777507713 - 2¹ = 1220777507711 is a prime.

Together with 1220777507711, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1220777507711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610388753856 + 610388753857.

It is an arithmetic number, because the mean of its divisors is an integer number (610388753857).

Almost surely, 2^{1220777507713} is an apocalyptic number.

It is an amenable number.

1220777507713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220777507713 is an equidigital number, since it uses as much as digits as its factorization.

1220777507713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008420, while the sum is 49.

The spelling of 1220777507713 in words is "one trillion, two hundred twenty billion, seven hundred seventy-seven million, five hundred seven thousand, seven hundred thirteen".