12196524521 has 2 divisors, whose sum is σ = 12196524522. Its totient is φ = 12196524520.

The previous prime is 12196524503. The next prime is 12196524539. The reversal of 12196524521 is 12542569121.

It is a balanced prime because it is at equal distance from previous prime (12196524503) and next prime (12196524539).

It can be written as a sum of positive squares in only one way, i.e., 9947868121 + 2248656400 = 99739^2 + 47420^2 .

It is a cyclic number.

It is not a de Polignac number, because 12196524521 - 2²² = 12192330217 is a prime.

It is not a weakly prime, because it can be changed into another prime (12196574521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098262260 + 6098262261.

It is an arithmetic number, because the mean of its divisors is an integer number (6098262261).

Almost surely, 2^12196524521 is an apocalyptic number.

It is an amenable number.

12196524521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12196524521 is an equidigital number, since it uses as much as digits as its factorization.

12196524521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The spelling of 12196524521 in words is "twelve billion, one hundred ninety-six million, five hundred twenty-four thousand, five hundred twenty-one".