100001202000221 has 4 divisors (see below), whose sum is σ = 100020968995200. Its totient is φ = 99981435005244.

The previous prime is 100001202000191. The next prime is 100001202000223. The reversal of 100001202000221 is 122000202100001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100001202000221 - 2¹⁰ = 100001201999197 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 (100001202000223) 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, 9883489901 + ... + 9883500018.

It is an arithmetic number, because the mean of its divisors is an integer number (25005242248800).

Almost surely, 2^{100001202000221} is an apocalyptic number.

It is an amenable number.

100001202000221 is a deficient number, since it is larger than the sum of its proper divisors (19766994979).

100001202000221 is an equidigital number, since it uses as much as digits as its factorization.

100001202000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19766994978.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100001202000221 its reverse (122000202100001), we get a palindrome (222001404100222).

The spelling of 100001202000221 in words is "one hundred trillion, one billion, two hundred two million, two hundred twenty-one", and thus it is an aban number.