121000111201121 has 4 divisors (see below), whose sum is σ = 121812192484500. Its totient is φ = 120188029917744.

The previous prime is 121000111201093. The next prime is 121000111201181. The reversal of 121000111201121 is 121102111000121.

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 48226927482721 + 72773183718400 = 6944561^2 + 8530720^2 .

It is a cyclic number.

It is not a de Polignac number, because 121000111201121 - 2³⁰ = 120999037459297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121000111201096 and 121000111201105.

It is not an unprimeable number, because it can be changed into a prime (121000111201181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406040641466 + ... + 406040641763.

It is an arithmetic number, because the mean of its divisors is an integer number (30453048121125).

Almost surely, 2^{121000111201121} is an apocalyptic number.

It is an amenable number.

121000111201121 is a deficient number, since it is larger than the sum of its proper divisors (812081283379).

121000111201121 is an equidigital number, since it uses as much as digits as its factorization.

121000111201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812081283378.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121000111201121 its reverse (121102111000121), we get a palindrome (242102222201242).

The spelling of 121000111201121 in words is "one hundred twenty-one trillion, one hundred eleven million, two hundred one thousand, one hundred twenty-one".