12121204411471 has 2 divisors, whose sum is σ = 12121204411472. Its totient is φ = 12121204411470.

The previous prime is 12121204411441. The next prime is 12121204411483. The reversal of 12121204411471 is 17411440212121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12121204411471 - 2¹¹ = 12121204409423 is a prime.

It is a super-3 number, since 3×12121204411471³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121204411441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060602205735 + 6060602205736.

It is an arithmetic number, because the mean of its divisors is an integer number (6060602205736).

Almost surely, 2^{12121204411471} is an apocalyptic number.

12121204411471 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121204411471 is an equidigital number, since it uses as much as digits as its factorization.

12121204411471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 31.

Adding to 12121204411471 its reverse (17411440212121), we get a palindrome (29532644623592).

The spelling of 12121204411471 in words is "twelve trillion, one hundred twenty-one billion, two hundred four million, four hundred eleven thousand, four hundred seventy-one".