100221002201 has 4 divisors (see below), whose sum is σ = 100397138100. Its totient is φ = 100044866304.

The previous prime is 100221002197. The next prime is 100221002213. The reversal of 100221002201 is 102200122001.

It is a happy number.

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 49020174025 + 51200828176 = 221405^2 + 226276^2 .

It is a cyclic number.

It is not a de Polignac number, because 100221002201 - 2² = 100221002197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100221001201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88067096 + ... + 88068233.

It is an arithmetic number, because the mean of its divisors is an integer number (25099284525).

Almost surely, 2^100221002201 is an apocalyptic number.

It is an amenable number.

100221002201 is a deficient number, since it is larger than the sum of its proper divisors (176135899).

100221002201 is an equidigital number, since it uses as much as digits as its factorization.

100221002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176135898.

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

Adding to 100221002201 its reverse (102200122001), we get a palindrome (202421124202).

The spelling of 100221002201 in words is "one hundred billion, two hundred twenty-one million, two thousand, two hundred one".