11100120121 has 16 divisors (see below), whose sum is σ = 11608547328. Its totient is φ = 10601370000.

The previous prime is 11100120113. The next prime is 11100120151. The reversal of 11100120121 is 12102100111.

11100120121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11100120121 - 2³ = 11100120113 is a prime.

It is a super-3 number, since 3×11100120121³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11100120098 and 11100120107.

It is not an unprimeable number, because it can be changed into a prime (11100120151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3412746 + ... + 3415996.

It is an arithmetic number, because the mean of its divisors is an integer number (725534208).

Almost surely, 2^11100120121 is an apocalyptic number.

It is an amenable number.

11100120121 is a deficient number, since it is larger than the sum of its proper divisors (508427207).

11100120121 is a wasteful number, since it uses less digits than its factorization.

11100120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11100120121 its reverse (12102100111), we get a palindrome (23202220232).

The spelling of 11100120121 in words is "eleven billion, one hundred million, one hundred twenty thousand, one hundred twenty-one".