120201221011121 has 4 divisors (see below), whose sum is σ = 120248900990244. Its totient is φ = 120153541032000.

The previous prime is 120201221011099. The next prime is 120201221011127. The reversal of 120201221011121 is 121110122102021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5374565892721 + 114826655118400 = 2318311^2 + 10715720^2 .

It is a cyclic number.

It is not a de Polignac number, because 120201221011121 - 2¹⁴ = 120201220994737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120201221011121.

It is not an unprimeable number, because it can be changed into a prime (120201221011127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23839985780 + ... + 23839990821.

It is an arithmetic number, because the mean of its divisors is an integer number (30062225247561).

Almost surely, 2^{120201221011121} is an apocalyptic number.

It is an amenable number.

120201221011121 is a deficient number, since it is larger than the sum of its proper divisors (47679979123).

120201221011121 is an equidigital number, since it uses as much as digits as its factorization.

120201221011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47679979122.

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

Adding to 120201221011121 its reverse (121110122102021), we get a palindrome (241311343113142).

The spelling of 120201221011121 in words is "one hundred twenty trillion, two hundred one billion, two hundred twenty-one million, eleven thousand, one hundred twenty-one".