11120111020121 has 4 divisors (see below), whose sum is σ = 11705380021200. Its totient is φ = 10534842019044.

The previous prime is 11120111020097. The next prime is 11120111020133. The reversal of 11120111020121 is 12102011102111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11120111020121 - 2¹⁰ = 11120111019097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120111020096 and 11120111020105.

It is not an unprimeable number, because it can be changed into a prime (11120111020621) 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, 292634500511 + ... + 292634500548.

It is an arithmetic number, because the mean of its divisors is an integer number (2926345005300).

Almost surely, 2^{11120111020121} is an apocalyptic number.

It is an amenable number.

11120111020121 is a deficient number, since it is larger than the sum of its proper divisors (585269001079).

11120111020121 is an equidigital number, since it uses as much as digits as its factorization.

11120111020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585269001078.

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

Adding to 11120111020121 its reverse (12102011102111), we get a palindrome (23222122122232).

The spelling of 11120111020121 in words is "eleven trillion, one hundred twenty billion, one hundred eleven million, twenty thousand, one hundred twenty-one".