21113200211 has 2 divisors, whose sum is σ = 21113200212. Its totient is φ = 21113200210.

The previous prime is 21113200189. The next prime is 21113200219. The reversal of 21113200211 is 11200231112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21113200211 - 2¹⁰ = 21113199187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21113200219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556600105 + 10556600106.

It is an arithmetic number, because the mean of its divisors is an integer number (10556600106).

Almost surely, 2^21113200211 is an apocalyptic number.

21113200211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113200211 is an equidigital number, since it uses as much as digits as its factorization.

21113200211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21113200211 its reverse (11200231112), we get a palindrome (32313431323).

The spelling of 21113200211 in words is "twenty-one billion, one hundred thirteen million, two hundred thousand, two hundred eleven".