12211209019 has 2 divisors, whose sum is σ = 12211209020. Its totient is φ = 12211209018.

The previous prime is 12211208951. The next prime is 12211209029. The reversal of 12211209019 is 91090211221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12211209019 - 2¹¹ = 12211206971 is a prime.

It is a super-2 number, since 2×12211209019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12211209029) 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, 6105604509 + 6105604510.

It is an arithmetic number, because the mean of its divisors is an integer number (6105604510).

Almost surely, 2^12211209019 is an apocalyptic number.

12211209019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211209019 is an equidigital number, since it uses as much as digits as its factorization.

12211209019 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 12211209019 in words is "twelve billion, two hundred eleven million, two hundred nine thousand, nineteen".