200001201209989 has 2 divisors, whose sum is σ = 200001201209990. Its totient is φ = 200001201209988.

The previous prime is 200001201209983. The next prime is 200001201210029. The reversal of 200001201209989 is 989902102100002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167173263202500 + 32827938007489 = 12929550^2 + 5729567^2 .

It is a cyclic number.

It is not a de Polignac number, because 200001201209989 - 2³ = 200001201209981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200001201209981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100000600604994 + 100000600604995.

It is an arithmetic number, because the mean of its divisors is an integer number (100000600604995).

Almost surely, 2^{200001201209989} is an apocalyptic number.

It is an amenable number.

200001201209989 is a deficient number, since it is larger than the sum of its proper divisors (1).

200001201209989 is an equidigital number, since it uses as much as digits as its factorization.

200001201209989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 200001201209989 in words is "two hundred trillion, one billion, two hundred one million, two hundred nine thousand, nine hundred eighty-nine".