121113340424242 has 16 divisors (see below), whose sum is σ = 192288118276800. Its totient is φ = 57052518603120.

The previous prime is 121113340424231. The next prime is 121113340424281. The reversal of 121113340424242 is 242424043311121.

It is a junction number, because it is equal to n+sod(n) for n = 121113340424198 and 121113340424207.

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, 8804394142 + ... + 8804407897.

It is an arithmetic number, because the mean of its divisors is an integer number (12018007392300).

Almost surely, 2^{121113340424242} is an apocalyptic number.

121113340424242 is a deficient number, since it is larger than the sum of its proper divisors (71174777852558).

121113340424242 is a wasteful number, since it uses less digits than its factorization.

121113340424242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17608802241.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 121113340424242 its reverse (242424043311121), we get a palindrome (363537383735363).

The spelling of 121113340424242 in words is "one hundred twenty-one trillion, one hundred thirteen billion, three hundred forty million, four hundred twenty-four thousand, two hundred forty-two".