12011120211121 has 2 divisors, whose sum is σ = 12011120211122. Its totient is φ = 12011120211120.

The previous prime is 12011120211071. The next prime is 12011120211143. The reversal of 12011120211121 is 12111202111021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9793701401121 + 2217418810000 = 3129489^2 + 1489100^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011120211121 - 2¹³ = 12011120202929 is a prime.

It is a super-2 number, since 2×12011120211121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011120211095 and 12011120211104.

It is not a weakly prime, because it can be changed into another prime (12011120211191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005560105560 + 6005560105561.

It is an arithmetic number, because the mean of its divisors is an integer number (6005560105561).

Almost surely, 2^{12011120211121} is an apocalyptic number.

It is an amenable number.

12011120211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011120211121 is an equidigital number, since it uses as much as digits as its factorization.

12011120211121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 12011120211121 its reverse (12111202111021), we get a palindrome (24122322322142).

The spelling of 12011120211121 in words is "twelve trillion, eleven billion, one hundred twenty million, two hundred eleven thousand, one hundred twenty-one".