121134312242 has 16 divisors (see below), whose sum is σ = 192235602240. Its totient is φ = 57088141488.

The previous prime is 121134312199. The next prime is 121134312251. The reversal of 121134312242 is 242213431121.

It is a happy number.

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, 8083238 + ... + 8098209.

It is an arithmetic number, because the mean of its divisors is an integer number (12014725140).

Almost surely, 2^121134312242 is an apocalyptic number.

121134312242 is a deficient number, since it is larger than the sum of its proper divisors (71101289998).

121134312242 is a wasteful number, since it uses less digits than its factorization.

121134312242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16181665.

The product of its digits is 2304, while the sum is 26.

Adding to 121134312242 its reverse (242213431121), we get a palindrome (363347743363).

The spelling of 121134312242 in words is "one hundred twenty-one billion, one hundred thirty-four million, three hundred twelve thousand, two hundred forty-two".