21110200211 has 8 divisors (see below), whose sum is σ = 23528396880. Its totient is φ = 18822716928.

The previous prime is 21110200159. The next prime is 21110200217. The reversal of 21110200211 is 11200201112.

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

It is not a de Polignac number, because 21110200211 - 2¹⁸ = 21109938067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21110200192 and 21110200201.

It is not an unprimeable number, because it can be changed into a prime (21110200217) 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, 32678006 + ... + 32678651.

It is an arithmetic number, because the mean of its divisors is an integer number (2941049610).

Almost surely, 2^21110200211 is an apocalyptic number.

21110200211 is a deficient number, since it is larger than the sum of its proper divisors (2418196669).

21110200211 is a wasteful number, since it uses less digits than its factorization.

21110200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65356693.

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

Adding to 21110200211 its reverse (11200201112), we get a palindrome (32310401323).

Subtracting from 21110200211 its reverse (11200201112), we obtain a palindrome (9909999099).

The spelling of 21110200211 in words is "twenty-one billion, one hundred ten million, two hundred thousand, two hundred eleven".