12120113221147 has 2 divisors, whose sum is σ = 12120113221148. Its totient is φ = 12120113221146.

The previous prime is 12120113221091. The next prime is 12120113221171. The reversal of 12120113221147 is 74112231102121.

12120113221147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12120113221147 - 2¹⁹ = 12120112696859 is a prime.

It is not a weakly prime, because it can be changed into another prime (12120113291147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060056610573 + 6060056610574.

It is an arithmetic number, because the mean of its divisors is an integer number (6060056610574).

Almost surely, 2^{12120113221147} is an apocalyptic number.

12120113221147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120113221147 is an equidigital number, since it uses as much as digits as its factorization.

12120113221147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 12120113221147 its reverse (74112231102121), we get a palindrome (86232344323268).

The spelling of 12120113221147 in words is "twelve trillion, one hundred twenty billion, one hundred thirteen million, two hundred twenty-one thousand, one hundred forty-seven".