100002010101209 has 2 divisors, whose sum is σ = 100002010101210. Its totient is φ = 100002010101208.

The previous prime is 100002010101173. The next prime is 100002010101229. The reversal of 100002010101209 is 902101010200001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52067365555984 + 47934644545225 = 7215772^2 + 6923485^2 .

It is a cyclic number.

It is not a de Polignac number, because 100002010101209 - 2²⁸ = 100001741665753 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 (100002010101229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50001005050604 + 50001005050605.

It is an arithmetic number, because the mean of its divisors is an integer number (50001005050605).

Almost surely, 2^{100002010101209} is an apocalyptic number.

It is an amenable number.

100002010101209 is a deficient number, since it is larger than the sum of its proper divisors (1).

100002010101209 is an equidigital number, since it uses as much as digits as its factorization.

100002010101209 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 100002010101209 in words is "one hundred trillion, two billion, ten million, one hundred one thousand, two hundred nine".