121222302144242 has 32 divisors (see below), whose sum is σ = 197162386654464. Its totient is φ = 55565568072000.

The previous prime is 121222302144221. The next prime is 121222302144257. The reversal of 121222302144242 is 242441203222121.

It is a junction number, because it is equal to n+sod(n) for n = 121222302144199 and 121222302144208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13723148 + ... + 20754984.

It is an arithmetic number, because the mean of its divisors is an integer number (6161324582952).

Almost surely, 2^{121222302144242} is an apocalyptic number.

121222302144242 is a deficient number, since it is larger than the sum of its proper divisors (75940084510222).

121222302144242 is a wasteful number, since it uses less digits than its factorization.

121222302144242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7036394.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 121222302144242 its reverse (242441203222121), we get a palindrome (363663505366363).

The spelling of 121222302144242 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, three hundred two million, one hundred forty-four thousand, two hundred forty-two".