210221200100001 has 8 divisors (see below), whose sum is σ = 280694783588544. Its totient is φ = 139947541672400.

The previous prime is 210221200099903. The next prime is 210221200100017. The reversal of 210221200100001 is 100001002122012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210221200100001 - 2⁴⁶ = 139852455922337 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210221200100001.

It is not an unprimeable number, because it can be changed into a prime (210221200180001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49981262781 + ... + 49981266986.

It is an arithmetic number, because the mean of its divisors is an integer number (35086847948568).

Almost surely, 2^{210221200100001} is an apocalyptic number.

It is an amenable number.

210221200100001 is a deficient number, since it is larger than the sum of its proper divisors (70473583488543).

210221200100001 is an equidigital number, since it uses as much as digits as its factorization.

210221200100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99962530471.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210221200100001 its reverse (100001002122012), we get a palindrome (310222202222013).

The spelling of 210221200100001 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred million, one hundred thousand, one".