12201221110121 has 8 divisors (see below), whose sum is σ = 12391645529760. Its totient is φ = 12011041297728.

The previous prime is 12201221110019. The next prime is 12201221110129. The reversal of 12201221110121 is 12101112210221.

12201221110121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201221110121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12201221110121.

It is not an unprimeable number, because it can be changed into a prime (12201221110129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61051271 + ... + 61250796.

It is an arithmetic number, because the mean of its divisors is an integer number (1548955691220).

Almost surely, 2^{12201221110121} is an apocalyptic number.

It is an amenable number.

12201221110121 is a deficient number, since it is larger than the sum of its proper divisors (190424419639).

12201221110121 is a wasteful number, since it uses less digits than its factorization.

12201221110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122303623.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12201221110121 its reverse (12101112210221), we get a palindrome (24302333320342).

The spelling of 12201221110121 in words is "twelve trillion, two hundred one billion, two hundred twenty-one million, one hundred ten thousand, one hundred twenty-one".