1010001212009 has 2 divisors, whose sum is σ = 1010001212010. Its totient is φ = 1010001212008.

The previous prime is 1010001211987. The next prime is 1010001212021. The reversal of 1010001212009 is 9002121000101.

1010001212009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650840722009 + 359160490000 = 806747^2 + 599300^2 .

It is an emirp because it is prime and its reverse (9002121000101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1010001212009 - 2²⁰ = 1010000163433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1010001212809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505000606004 + 505000606005.

It is an arithmetic number, because the mean of its divisors is an integer number (505000606005).

Almost surely, 2^{1010001212009} is an apocalyptic number.

It is an amenable number.

1010001212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010001212009 is an equidigital number, since it uses as much as digits as its factorization.

1010001212009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 1010001212009 in words is "one trillion, ten billion, one million, two hundred twelve thousand, nine".