121410220242 has 64 divisors (see below), whose sum is σ = 254801479680. Its totient is φ = 38533756800.

The previous prime is 121410220223. The next prime is 121410220247. The reversal of 121410220242 is 242022014121.

It is not an unprimeable number, because it can be changed into a prime (121410220247) 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 31 ways as a sum of consecutive naturals, for example, 1593067 + ... + 1667537.

It is an arithmetic number, because the mean of its divisors is an integer number (3981273120).

Almost surely, 2^121410220242 is an apocalyptic number.

121410220242 is an abundant number, since it is smaller than the sum of its proper divisors (133391259438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121410220242 is a wasteful number, since it uses less digits than its factorization.

121410220242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74679.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121410220242 its reverse (242022014121), we get a palindrome (363432234363).

The spelling of 121410220242 in words is "one hundred twenty-one billion, four hundred ten million, two hundred twenty thousand, two hundred forty-two".