121133024242 has 4 divisors (see below), whose sum is σ = 181699536366. Its totient is φ = 60566512120.

The previous prime is 121133024239. The next prime is 121133024249. The reversal of 121133024242 is 242420331121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83123232721 + 38009791521 = 288311^2 + 194961^2 .

It is not an unprimeable number, because it can be changed into a prime (121133024249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30283256059 + ... + 30283256062.

Almost surely, 2^121133024242 is an apocalyptic number.

121133024242 is a deficient number, since it is larger than the sum of its proper divisors (60566512124).

121133024242 is an equidigital number, since it uses as much as digits as its factorization.

121133024242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60566512123.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 121133024242 its reverse (242420331121), we get a palindrome (363553355363).

The spelling of 121133024242 in words is "one hundred twenty-one billion, one hundred thirty-three million, twenty-four thousand, two hundred forty-two".