122147771017 has 4 divisors (see below), whose sum is σ = 129332934036. Its totient is φ = 114962608000.

The previous prime is 122147770961. The next prime is 122147771021. The reversal of 122147771017 is 710177741221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114038588416 + 8109182601 = 337696^2 + 90051^2 .

It is a cyclic number.

It is not a de Polignac number, because 122147771017 - 2¹⁵ = 122147738249 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122147774017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3592581484 + ... + 3592581517.

It is an arithmetic number, because the mean of its divisors is an integer number (32333233509).

Almost surely, 2^122147771017 is an apocalyptic number.

122147771017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

122147771017 is a deficient number, since it is larger than the sum of its proper divisors (7185163019).

122147771017 is an equidigital number, since it uses as much as digits as its factorization.

122147771017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7185163018.

The product of its (nonzero) digits is 38416, while the sum is 40.

The spelling of 122147771017 in words is "one hundred twenty-two billion, one hundred forty-seven million, seven hundred seventy-one thousand, seventeen".