210201209999 has 16 divisors (see below), whose sum is σ = 231614484480. Its totient is φ = 189172500000.

The previous prime is 210201209947. The next prime is 210201210013. The reversal of 210201209999 is 999902102012.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-210201209999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201209929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15270482 + ... + 15284240.

It is an arithmetic number, because the mean of its divisors is an integer number (14475905280).

Almost surely, 2^210201209999 is an apocalyptic number.

210201209999 is a deficient number, since it is larger than the sum of its proper divisors (21413274481).

210201209999 is a wasteful number, since it uses less digits than its factorization.

210201209999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27622.

The product of its (nonzero) digits is 52488, while the sum is 44.

The spelling of 210201209999 in words is "two hundred ten billion, two hundred one million, two hundred nine thousand, nine hundred ninety-nine".