210211210110221 has 8 divisors (see below), whose sum is σ = 215913887835360. Its totient is φ = 204509653104528.

The previous prime is 210211210110193. The next prime is 210211210110337. The reversal of 210211210110221 is 122011012112012.

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

It is a de Polignac number, because none of the positive numbers 2^k-210211210110221 is a prime.

It is a super-3 number, since 3×210211210110221³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

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 210211210110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211210112221) 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, 279799631 + ... + 280549916.

It is an arithmetic number, because the mean of its divisors is an integer number (26989235979420).

Almost surely, 2^{210211210110221} is an apocalyptic number.

It is an amenable number.

210211210110221 is a deficient number, since it is larger than the sum of its proper divisors (5702677725139).

210211210110221 is a wasteful number, since it uses less digits than its factorization.

210211210110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560359723.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210211210110221 its reverse (122011012112012), we get a palindrome (332222222222233).

The spelling of 210211210110221 in words is "two hundred ten trillion, two hundred eleven billion, two hundred ten million, one hundred ten thousand, two hundred twenty-one".