12175222355449 has 2 divisors, whose sum is σ = 12175222355450. Its totient is φ = 12175222355448.

The previous prime is 12175222355441. The next prime is 12175222355557. The reversal of 12175222355449 is 94455322257121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11379793826025 + 795428529424 = 3373395^2 + 891868^2 .

It is a cyclic number.

It is not a de Polignac number, because 12175222355449 - 2³ = 12175222355441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12175222355396 and 12175222355405.

It is not a weakly prime, because it can be changed into another prime (12175222355441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6087611177724 + 6087611177725.

It is an arithmetic number, because the mean of its divisors is an integer number (6087611177725).

Almost surely, 2^{12175222355449} is an apocalyptic number.

It is an amenable number.

12175222355449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12175222355449 is an equidigital number, since it uses as much as digits as its factorization.

12175222355449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048000, while the sum is 52.

The spelling of 12175222355449 in words is "twelve trillion, one hundred seventy-five billion, two hundred twenty-two million, three hundred fifty-five thousand, four hundred forty-nine".