121224330242 has 16 divisors (see below), whose sum is σ = 193322479680. Its totient is φ = 56882949552.

The previous prime is 121224330239. The next prime is 121224330259. The reversal of 121224330242 is 242033422121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24858992 + ... + 24863867.

It is an arithmetic number, because the mean of its divisors is an integer number (12082654980).

Almost surely, 2^121224330242 is an apocalyptic number.

121224330242 is a deficient number, since it is larger than the sum of its proper divisors (72098149438).

121224330242 is a wasteful number, since it uses less digits than its factorization.

121224330242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49722937.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 121224330242 its reverse (242033422121), we get a palindrome (363257752363).

The spelling of 121224330242 in words is "one hundred twenty-one billion, two hundred twenty-four million, three hundred thirty thousand, two hundred forty-two".