12219275473 has 2 divisors, whose sum is σ = 12219275474. Its totient is φ = 12219275472.

The previous prime is 12219275447. The next prime is 12219275479. The reversal of 12219275473 is 37457291221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8837504064 + 3381771409 = 94008^2 + 58153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12219275473 is a prime.

It is not a weakly prime, because it can be changed into another prime (12219275479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6109637736 + 6109637737.

It is an arithmetic number, because the mean of its divisors is an integer number (6109637737).

Almost surely, 2^12219275473 is an apocalyptic number.

It is an amenable number.

12219275473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12219275473 is an equidigital number, since it uses as much as digits as its factorization.

12219275473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The spelling of 12219275473 in words is "twelve billion, two hundred nineteen million, two hundred seventy-five thousand, four hundred seventy-three".