1227318216667 has 2 divisors, whose sum is σ = 1227318216668. Its totient is φ = 1227318216666.

The previous prime is 1227318216653. The next prime is 1227318216739. The reversal of 1227318216667 is 7666128137221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1227318216667 - 2¹⁹ = 1227317692379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1227318216617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613659108333 + 613659108334.

It is an arithmetic number, because the mean of its divisors is an integer number (613659108334).

Almost surely, 2^{1227318216667} is an apocalyptic number.

1227318216667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227318216667 is an equidigital number, since it uses as much as digits as its factorization.

1227318216667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The spelling of 1227318216667 in words is "one trillion, two hundred twenty-seven billion, three hundred eighteen million, two hundred sixteen thousand, six hundred sixty-seven".