122020173017 has 4 divisors (see below), whose sum is σ = 126227765220. Its totient is φ = 117812580816.

The previous prime is 122020173013. The next prime is 122020173139. The reversal of 122020173017 is 710371020221.

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 28101828496 + 93918344521 = 167636^2 + 306461^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020173017 - 2² = 122020173013 is a prime.

It is a super-2 number, since 2×122020173017² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122020173013) 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, 2103796058 + ... + 2103796115.

It is an arithmetic number, because the mean of its divisors is an integer number (31556941305).

Almost surely, 2^122020173017 is an apocalyptic number.

It is an amenable number.

122020173017 is a deficient number, since it is larger than the sum of its proper divisors (4207592203).

122020173017 is an equidigital number, since it uses as much as digits as its factorization.

122020173017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207592202.

The product of its (nonzero) digits is 1176, while the sum is 26.

Adding to 122020173017 its reverse (710371020221), we get a palindrome (832391193238).

The spelling of 122020173017 in words is "one hundred twenty-two billion, twenty million, one hundred seventy-three thousand, seventeen".