12012011110121 has 16 divisors (see below), whose sum is σ = 13886272152000. Its totient is φ = 10275841339200.

The previous prime is 12012011110103. The next prime is 12012011110133. The reversal of 12012011110121 is 12101111021021.

It is a cyclic number.

It is not a de Polignac number, because 12012011110121 - 2²² = 12012006915817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012011110096 and 12012011110105.

It is not an unprimeable number, because it can be changed into a prime (12012011110321) 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, 192833750 + ... + 192896031.

It is an arithmetic number, because the mean of its divisors is an integer number (867892009500).

Almost surely, 2^{12012011110121} is an apocalyptic number.

12012011110121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12012011110121 is a deficient number, since it is larger than the sum of its proper divisors (1874261041879).

12012011110121 is a wasteful number, since it uses less digits than its factorization.

12012011110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385729960.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12012011110121 its reverse (12101111021021), we get a palindrome (24113122131142).

The spelling of 12012011110121 in words is "twelve trillion, twelve billion, eleven million, one hundred ten thousand, one hundred twenty-one".