210001110221201 has 4 divisors (see below), whose sum is σ = 226155041776692. Its totient is φ = 193847178665712.

The previous prime is 210001110221159. The next prime is 210001110221219. The reversal of 210001110221201 is 102122011100012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24973756890625 + 185027353330576 = 4997375^2 + 13602476^2 .

It is not a de Polignac number, because 210001110221201 - 2¹⁰ = 210001110220177 is a prime.

It is a super-2 number, since 2×210001110221201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (210001110221261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8076965777726 + ... + 8076965777751.

It is an arithmetic number, because the mean of its divisors is an integer number (56538760444173).

Almost surely, 2^{210001110221201} is an apocalyptic number.

It is an amenable number.

210001110221201 is a deficient number, since it is larger than the sum of its proper divisors (16153931555491).

210001110221201 is a wasteful number, since it uses less digits than its factorization.

210001110221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16153931555490.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210001110221201 its reverse (102122011100012), we get a palindrome (312123121321213).

The spelling of 210001110221201 in words is "two hundred ten trillion, one billion, one hundred ten million, two hundred twenty-one thousand, two hundred one".