11120222020121 has 4 divisors (see below), whose sum is σ = 11137570261044. Its totient is φ = 11102873779200.

The previous prime is 11120222020051. The next prime is 11120222020147. The reversal of 11120222020121 is 12102022202111.

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 9975458976025 + 1144763044096 = 3158395^2 + 1069936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11120222020121 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 11120222020121.

It is not an unprimeable number, because it can be changed into a prime (11120222020151) 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, 8674119500 + ... + 8674120781.

It is an arithmetic number, because the mean of its divisors is an integer number (2784392565261).

Almost surely, 2^{11120222020121} is an apocalyptic number.

It is an amenable number.

11120222020121 is a deficient number, since it is larger than the sum of its proper divisors (17348240923).

11120222020121 is an equidigital number, since it uses as much as digits as its factorization.

11120222020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17348240922.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11120222020121 its reverse (12102022202111), we get a palindrome (23222244222232).

The spelling of 11120222020121 in words is "eleven trillion, one hundred twenty billion, two hundred twenty-two million, twenty thousand, one hundred twenty-one".