122118113 has 4 divisors (see below), whose sum is σ = 131511828. Its totient is φ = 112724400.

The previous prime is 122118097. The next prime is 122118119. The reversal of 122118113 is 311811221.

It is a happy number.

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 39526369 + 82591744 = 6287^2 + 9088^2 .

It is a cyclic number.

It is not a de Polignac number, because 122118113 - 2⁴ = 122118097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122118119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4696838 + ... + 4696863.

It is an arithmetic number, because the mean of its divisors is an integer number (32877957).

Almost surely, 2^122118113 is an apocalyptic number.

122118113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

122118113 is a deficient number, since it is larger than the sum of its proper divisors (9393715).

122118113 is an equidigital number, since it uses as much as digits as its factorization.

122118113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393714.

The product of its digits is 96, while the sum is 20.

The square root of 122118113 is about 11050.7064480059. The cubic root of 122118113 is about 496.1275699982.

Adding to 122118113 its reverse (311811221), we get a palindrome (433929334).

The spelling of 122118113 in words is "one hundred twenty-two million, one hundred eighteen thousand, one hundred thirteen".