12011101321121 has 32 divisors (see below), whose sum is σ = 13941751726080. Its totient is φ = 10135805299200.

The previous prime is 12011101321111. The next prime is 12011101321211. The reversal of 12011101321121 is 12112310111021.

It is not a de Polignac number, because 12011101321121 - 2¹⁴ = 12011101304737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12011101321121.

It is not an unprimeable number, because it can be changed into a prime (12011101321111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50378225 + ... + 50616081.

It is an arithmetic number, because the mean of its divisors is an integer number (435679741440).

Almost surely, 2^{12011101321121} is an apocalyptic number.

It is an amenable number.

12011101321121 is a deficient number, since it is larger than the sum of its proper divisors (1930650404959).

12011101321121 is a wasteful number, since it uses less digits than its factorization.

12011101321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238445.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12011101321121 its reverse (12112310111021), we get a palindrome (24123411432142).

The spelling of 12011101321121 in words is "twelve trillion, eleven billion, one hundred one million, three hundred twenty-one thousand, one hundred twenty-one".