12212119009 has 2 divisors, whose sum is σ = 12212119010. Its totient is φ = 12212119008.

The previous prime is 12212118949. The next prime is 12212119043. The reversal of 12212119009 is 90091121221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8072483409 + 4139635600 = 89847^2 + 64340^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212119009 - 2¹⁵ = 12212086241 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212119079) 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, 6106059504 + 6106059505.

It is an arithmetic number, because the mean of its divisors is an integer number (6106059505).

Almost surely, 2^12212119009 is an apocalyptic number.

It is an amenable number.

12212119009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212119009 is an equidigital number, since it uses as much as digits as its factorization.

12212119009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 12212119009 in words is "twelve billion, two hundred twelve million, one hundred nineteen thousand, nine".