12011100120121 has 4 divisors (see below), whose sum is σ = 12117393041652. Its totient is φ = 11904807198592.

The previous prime is 12011100120101. The next prime is 12011100120143. The reversal of 12011100120121 is 12102100111021.

It is a happy number.

12011100120121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 795064688896 + 11216035431225 = 891664^2 + 3349035^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011100120121 - 2¹³ = 12011100111929 is a prime.

It is a super-3 number, since 3×12011100120121³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011100120101) 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, 53146460596 + ... + 53146460821.

It is an arithmetic number, because the mean of its divisors is an integer number (3029348260413).

Almost surely, 2^{12011100120121} is an apocalyptic number.

It is an amenable number.

12011100120121 is a deficient number, since it is larger than the sum of its proper divisors (106292921531).

12011100120121 is a wasteful number, since it uses less digits than its factorization.

12011100120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106292921530.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12011100120121 its reverse (12102100111021), we get a palindrome (24113200231142).

The spelling of 12011100120121 in words is "twelve trillion, eleven billion, one hundred million, one hundred twenty thousand, one hundred twenty-one".