121115122 has 8 divisors (see below), whose sum is σ = 181766700. Its totient is φ = 60526224.

The previous prime is 121115083. The next prime is 121115129. The reversal of 121115122 is 221511121.

It can be written as a sum of positive squares in 2 ways, for example, as 119268241 + 1846881 = 10921^2 + 1359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121115096 and 121115105.

It is not an unprimeable number, because it can be changed into a prime (121115129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10497 + ... + 18772.

Almost surely, 2^121115122 is an apocalyptic number.

121115122 is a deficient number, since it is larger than the sum of its proper divisors (60651578).

121115122 is a wasteful number, since it uses less digits than its factorization.

121115122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31340.

The product of its digits is 40, while the sum is 16.

The square root of 121115122 is about 11005.2315741196. The cubic root of 121115122 is about 494.7655550668.

Adding to 121115122 its reverse (221511121), we get a palindrome (342626243).

The spelling of 121115122 in words is "one hundred twenty-one million, one hundred fifteen thousand, one hundred twenty-two".