10002110221 has 4 divisors (see below), whose sum is σ = 10009871100. Its totient is φ = 9994349344.

The previous prime is 10002110203. The next prime is 10002110263. The reversal of 10002110221 is 12201120001.

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 9411134121 + 590976100 = 97011^2 + 24310^2 .

It is a cyclic number.

It is not a de Polignac number, because 10002110221 - 2¹⁵ = 10002077453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002110198 and 10002110207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002110621) 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, 3878506 + ... + 3881083.

It is an arithmetic number, because the mean of its divisors is an integer number (2502467775).

Almost surely, 2^10002110221 is an apocalyptic number.

It is an amenable number.

10002110221 is a deficient number, since it is larger than the sum of its proper divisors (7760879).

10002110221 is an equidigital number, since it uses as much as digits as its factorization.

10002110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760878.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10002110221 its reverse (12201120001), we get a palindrome (22203230222).

The spelling of 10002110221 in words is "ten billion, two million, one hundred ten thousand, two hundred twenty-one".