1201122996617 has 2 divisors, whose sum is σ = 1201122996618. Its totient is φ = 1201122996616.

The previous prime is 1201122996613. The next prime is 1201122996631. The reversal of 1201122996617 is 7166992211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1191686622736 + 9436373881 = 1091644^2 + 97141^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201122996617 - 2² = 1201122996613 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201122996611) 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, 600561498308 + 600561498309.

It is an arithmetic number, because the mean of its divisors is an integer number (600561498309).

Almost surely, 2^{1201122996617} is an apocalyptic number.

It is an amenable number.

1201122996617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201122996617 is an equidigital number, since it uses as much as digits as its factorization.

1201122996617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 1201122996617 in words is "one trillion, two hundred one billion, one hundred twenty-two million, nine hundred ninety-six thousand, six hundred seventeen".