12215432473 has 2 divisors, whose sum is σ = 12215432474. Its totient is φ = 12215432472.

The previous prime is 12215432413. The next prime is 12215432477. The reversal of 12215432473 is 37423451221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12061969929 + 153462544 = 109827^2 + 12388^2 .

It is a cyclic number.

It is not a de Polignac number, because 12215432473 - 2⁹ = 12215431961 is a prime.

It is not a weakly prime, because it can be changed into another prime (12215432477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6107716236 + 6107716237.

It is an arithmetic number, because the mean of its divisors is an integer number (6107716237).

Almost surely, 2^12215432473 is an apocalyptic number.

It is an amenable number.

12215432473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12215432473 is an equidigital number, since it uses as much as digits as its factorization.

12215432473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

Adding to 12215432473 its reverse (37423451221), we get a palindrome (49638883694).

The spelling of 12215432473 in words is "twelve billion, two hundred fifteen million, four hundred thirty-two thousand, four hundred seventy-three".