100001021201 has 16 divisors (see below), whose sum is σ = 104817377280. Its totient is φ = 95224686480.

The previous prime is 100001021189. The next prime is 100001021273. The reversal of 100001021201 is 102120100001.

It is not a de Polignac number, because 100001021201 - 2¹⁸ = 100000759057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100001021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4664216 + ... + 4685606.

It is an arithmetic number, because the mean of its divisors is an integer number (6551086080).

Almost surely, 2^100001021201 is an apocalyptic number.

It is an amenable number.

100001021201 is a deficient number, since it is larger than the sum of its proper divisors (4816356079).

100001021201 is a wasteful number, since it uses less digits than its factorization.

100001021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22316.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100001021201 its reverse (102120100001), we get a palindrome (202121121202).

The spelling of 100001021201 in words is "one hundred billion, one million, twenty-one thousand, two hundred one".