12011201331121 has 2 divisors, whose sum is σ = 12011201331122. Its totient is φ = 12011201331120.

The previous prime is 12011201331053. The next prime is 12011201331137. The reversal of 12011201331121 is 12113310211021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11869024071025 + 142177260096 = 3445145^2 + 377064^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011201331121 - 2⁷ = 12011201330993 is a prime.

It is not a weakly prime, because it can be changed into another prime (12011201332121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005600665560 + 6005600665561.

It is an arithmetic number, because the mean of its divisors is an integer number (6005600665561).

Almost surely, 2^{12011201331121} is an apocalyptic number.

It is an amenable number.

12011201331121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011201331121 is an equidigital number, since it uses as much as digits as its factorization.

12011201331121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12011201331121 its reverse (12113310211021), we get a palindrome (24124511542142).

The spelling of 12011201331121 in words is "twelve trillion, eleven billion, two hundred one million, three hundred thirty-one thousand, one hundred twenty-one".