211000110221 has 4 divisors (see below), whose sum is σ = 222105379200. Its totient is φ = 199894841244.

The previous prime is 211000110203. The next prime is 211000110253. The reversal of 211000110221 is 122011000112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211000110221 - 2¹⁰ = 211000109197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000100221) 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, 5552634461 + ... + 5552634498.

It is an arithmetic number, because the mean of its divisors is an integer number (55526344800).

Almost surely, 2^211000110221 is an apocalyptic number.

It is an amenable number.

211000110221 is a deficient number, since it is larger than the sum of its proper divisors (11105268979).

211000110221 is a wasteful number, since it uses less digits than its factorization.

211000110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105268978.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211000110221 its reverse (122011000112), we get a palindrome (333011110333).

The spelling of 211000110221 in words is "two hundred eleven billion, one hundred ten thousand, two hundred twenty-one".