12191882273 has 2 divisors, whose sum is σ = 12191882274. Its totient is φ = 12191882272.

The previous prime is 12191882233. The next prime is 12191882281. The reversal of 12191882273 is 37228819121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7742592064 + 4449290209 = 87992^2 + 66703^2 .

It is a cyclic number.

It is not a de Polignac number, because 12191882273 - 2¹⁶ = 12191816737 is a prime.

It is not a weakly prime, because it can be changed into another prime (12191882233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6095941136 + 6095941137.

It is an arithmetic number, because the mean of its divisors is an integer number (6095941137).

Almost surely, 2^12191882273 is an apocalyptic number.

It is an amenable number.

12191882273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12191882273 is an equidigital number, since it uses as much as digits as its factorization.

12191882273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 44.

The spelling of 12191882273 in words is "twelve billion, one hundred ninety-one million, eight hundred eighty-two thousand, two hundred seventy-three".