122117018 has 16 divisors (see below), whose sum is σ = 196686144. Its totient is φ = 56656320.

The previous prime is 122117011. The next prime is 122117027. The reversal of 122117018 is 810711221.

It is a junction number, because it is equal to n+sod(n) for n = 122116984 and 122117002.

It is not an unprimeable number, because it can be changed into a prime (122117011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22880 + ... + 27707.

It is an arithmetic number, because the mean of its divisors is an integer number (12292884).

Almost surely, 2^122117018 is an apocalyptic number.

122117018 is a deficient number, since it is larger than the sum of its proper divisors (74569126).

122117018 is a wasteful number, since it uses less digits than its factorization.

122117018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50677.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 122117018 is about 11050.6569035510. The cubic root of 122117018 is about 496.1260871133.

Adding to 122117018 its reverse (810711221), we get a palindrome (932828239).

The spelling of 122117018 in words is "one hundred twenty-two million, one hundred seventeen thousand, eighteen".