122570217 has 54 divisors (see below), whose sum is σ = 226474794. Its totient is φ = 63645120.

The previous prime is 122570209. The next prime is 122570237. The reversal of 122570217 is 712075221.

It can be written as a sum of positive squares in only one way, i.e., 103306896 + 19263321 = 10164^2 + 4389^2 .

It is not a de Polignac number, because 122570217 - 2³ = 122570209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122570207) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 52213 + ... + 54509.

Almost surely, 2^122570217 is an apocalyptic number.

It is an amenable number.

122570217 is a deficient number, since it is larger than the sum of its proper divisors (103904577).

122570217 is a wasteful number, since it uses less digits than its factorization.

122570217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 122570217 is about 11071.1434368813. The cubic root of 122570217 is about 496.7390682154.

The spelling of 122570217 in words is "one hundred twenty-two million, five hundred seventy thousand, two hundred seventeen".