12011100020121 has 16 divisors (see below), whose sum is σ = 16047437255424. Its totient is φ = 7991096100864.

The previous prime is 12011100020071. The next prime is 12011100020141. The reversal of 12011100020121 is 12102000111021.

It is not a de Polignac number, because 12011100020121 - 2⁶ = 12011100020057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12011100020097 and 12011100020106.

It is not an unprimeable number, because it can be changed into a prime (12011100020141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433305 + ... + 5106521.

It is an arithmetic number, because the mean of its divisors is an integer number (1002964828464).

Almost surely, 2^{12011100020121} is an apocalyptic number.

It is an amenable number.

12011100020121 is a deficient number, since it is larger than the sum of its proper divisors (4036337235303).

12011100020121 is a wasteful number, since it uses less digits than its factorization.

12011100020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675440.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12011100020121 its reverse (12102000111021), we get a palindrome (24113100131142).

The spelling of 12011100020121 in words is "twelve trillion, eleven billion, one hundred million, twenty thousand, one hundred twenty-one".