121224116 has 24 divisors (see below), whose sum is σ = 229183584. Its totient is φ = 55772640.

The previous prime is 121224113. The next prime is 121224133. The reversal of 121224116 is 611422121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121224113) 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 7 ways as a sum of consecutive naturals, for example, 13691 + ... + 20733.

It is an arithmetic number, because the mean of its divisors is an integer number (9549316).

Almost surely, 2^121224116 is an apocalyptic number.

It is an amenable number.

121224116 is a deficient number, since it is larger than the sum of its proper divisors (107959468).

121224116 is a wasteful number, since it uses less digits than its factorization.

121224116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7391 (or 7389 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 121224116 is about 11010.1823781443. The cubic root of 121224116 is about 494.9139271489.

Adding to 121224116 its reverse (611422121), we get a palindrome (732646237).

The spelling of 121224116 in words is "one hundred twenty-one million, two hundred twenty-four thousand, one hundred sixteen".