201000010212809 has 2 divisors, whose sum is σ = 201000010212810. Its totient is φ = 201000010212808.

The previous prime is 201000010212769. The next prime is 201000010212847. The reversal of 201000010212809 is 908212010000102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196657766934784 + 4342243278025 = 14023472^2 + 2083805^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000010212809 - 2¹² = 201000010208713 is a prime.

It is not a weakly prime, because it can be changed into another prime (201000010212899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500005106404 + 100500005106405.

It is an arithmetic number, because the mean of its divisors is an integer number (100500005106405).

Almost surely, 2^{201000010212809} is an apocalyptic number.

It is an amenable number.

201000010212809 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000010212809 is an equidigital number, since it uses as much as digits as its factorization.

201000010212809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 201000010212809 in words is "two hundred one trillion, ten million, two hundred twelve thousand, eight hundred nine".