11121120122121 has 24 divisors (see below), whose sum is σ = 16609079442176. Its totient is φ = 7163211503520.

The previous prime is 11121120122111. The next prime is 11121120122137. The reversal of 11121120122121 is 12122102112111.

It is a happy number.

11121120122121 is a `hidden beast` number, since 1 + 11 + 211 + 201 + 221 + 21 = 666.

It is not a de Polignac number, because 11121120122121 - 2⁵ = 11121120122089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121120122094 and 11121120122103.

It is not an unprimeable number, because it can be changed into a prime (11121120122111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32341735 + ... + 32683788.

Almost surely, 2^{11121120122121} is an apocalyptic number.

It is an amenable number.

11121120122121 is a deficient number, since it is larger than the sum of its proper divisors (5487959320055).

11121120122121 is a wasteful number, since it uses less digits than its factorization.

11121120122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65026173 (or 65026170 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11121120122121 its reverse (12122102112111), we get a palindrome (23243222234232).

The spelling of 11121120122121 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty-one".