12111022009949 has 2 divisors, whose sum is σ = 12111022009950. Its totient is φ = 12111022009948.

The previous prime is 12111022009939. The next prime is 12111022010033. The reversal of 12111022009949 is 94990022011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8197026672025 + 3913995337924 = 2863045^2 + 1978382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12111022009949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111022009939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055511004974 + 6055511004975.

It is an arithmetic number, because the mean of its divisors is an integer number (6055511004975).

Almost surely, 2^{12111022009949} is an apocalyptic number.

It is an amenable number.

12111022009949 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111022009949 is an equidigital number, since it uses as much as digits as its factorization.

12111022009949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 12111022009949 in words is "twelve trillion, one hundred eleven billion, twenty-two million, nine thousand, nine hundred forty-nine".