122215017 has 4 divisors (see below), whose sum is σ = 162953360. Its totient is φ = 81476676.

The previous prime is 122215007. The next prime is 122215061. The reversal of 122215017 is 710512221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122215017 - 2²³ = 113826409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122214984 and 122215002.

It is not an unprimeable number, because it can be changed into a prime (122215007) 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, 20369167 + ... + 20369172.

It is an arithmetic number, because the mean of its divisors is an integer number (40738340).

Almost surely, 2^122215017 is an apocalyptic number.

It is an amenable number.

122215017 is a deficient number, since it is larger than the sum of its proper divisors (40738343).

122215017 is an equidigital number, since it uses as much as digits as its factorization.

122215017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40738342.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 122215017 is about 11055.0900946125. The cubic root of 122215017 is about 496.2587654825.

Adding to 122215017 its reverse (710512221), we get a palindrome (832727238).

The spelling of 122215017 in words is "one hundred twenty-two million, two hundred fifteen thousand, seventeen".