210221201102111 has 8 divisors (see below), whose sum is σ = 211005462736800. Its totient is φ = 209438043286240.

The previous prime is 210221201102089. The next prime is 210221201102189. The reversal of 210221201102111 is 111201102122012.

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

It is a cyclic number.

It is not a de Polignac number, because 210221201102111 - 2²² = 210221196907807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210221201102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210221201104111) 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, 275573096 + ... + 276334893.

It is an arithmetic number, because the mean of its divisors is an integer number (26375682842100).

Almost surely, 2^{210221201102111} is an apocalyptic number.

210221201102111 is a deficient number, since it is larger than the sum of its proper divisors (784261634689).

210221201102111 is a wasteful number, since it uses less digits than its factorization.

210221201102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551909409.

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

Adding to 210221201102111 its reverse (111201102122012), we get a palindrome (321422303224123).

The spelling of 210221201102111 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred one million, one hundred two thousand, one hundred eleven".