10000100001209 has 2 divisors, whose sum is σ = 10000100001210. Its totient is φ = 10000100001208.

The previous prime is 10000100001191. The next prime is 10000100001253. The reversal of 10000100001209 is 90210000100001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9031948302400 + 968151698809 = 3005320^2 + 983947^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000100001209 - 2²⁴ = 10000083223993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000100001193 and 10000100001202.

It is not a weakly prime, because it can be changed into another prime (10000100001709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000050000604 + 5000050000605.

It is an arithmetic number, because the mean of its divisors is an integer number (5000050000605).

Almost surely, 2^{10000100001209} is an apocalyptic number.

It is an amenable number.

10000100001209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000100001209 is an equidigital number, since it uses as much as digits as its factorization.

10000100001209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The spelling of 10000100001209 in words is "ten trillion, one hundred million, one thousand, two hundred nine".