210221201022211 has 8 divisors (see below), whose sum is σ = 220271465915424. Its totient is φ = 200246787185280.

The previous prime is 210221201022199. The next prime is 210221201022233. The reversal of 210221201022211 is 112220102122012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210221201022211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210221201022281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18962758396 + ... + 18962769481.

It is an arithmetic number, because the mean of its divisors is an integer number (27533933239428).

Almost surely, 2^{210221201022211} is an apocalyptic number.

210221201022211 is a deficient number, since it is larger than the sum of its proper divisors (10050264893213).

210221201022211 is a wasteful number, since it uses less digits than its factorization.

210221201022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37925528141.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210221201022211 its reverse (112220102122012), we get a palindrome (322441303144223).

The spelling of 210221201022211 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred one million, twenty-two thousand, two hundred eleven".