210002101102221 has 8 divisors (see below), whose sum is σ = 282721275270720. Its totient is φ = 138642163834272.

The previous prime is 210002101102219. The next prime is 210002101102247. The reversal of 210002101102221 is 122201101200012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210002101102221 - 2¹ = 210002101102219 is a prime.

It is a super-2 number, since 2×210002101102221² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210002101102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002101102201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339809224776 + ... + 339809225393.

It is an arithmetic number, because the mean of its divisors is an integer number (35340159408840).

Almost surely, 2^{210002101102221} is an apocalyptic number.

It is an amenable number.

210002101102221 is a deficient number, since it is larger than the sum of its proper divisors (72719174168499).

210002101102221 is a wasteful number, since it uses less digits than its factorization.

210002101102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679618450275.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210002101102221 its reverse (122201101200012), we get a palindrome (332203202302233).

The spelling of 210002101102221 in words is "two hundred ten trillion, two billion, one hundred one million, one hundred two thousand, two hundred twenty-one".