21110011101211 has 2 divisors, whose sum is σ = 21110011101212. Its totient is φ = 21110011101210.

The previous prime is 21110011101163. The next prime is 21110011101227. The reversal of 21110011101211 is 11210111001112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21110011101211 - 2⁹ = 21110011100699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21110011101191 and 21110011101200.

It is not a weakly prime, because it can be changed into another prime (21110011101811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555005550605 + 10555005550606.

It is an arithmetic number, because the mean of its divisors is an integer number (10555005550606).

Almost surely, 2^{21110011101211} is an apocalyptic number.

21110011101211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110011101211 is an equidigital number, since it uses as much as digits as its factorization.

21110011101211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 21110011101211 its reverse (11210111001112), we get a palindrome (32320122102323).

The spelling of 21110011101211 in words is "twenty-one trillion, one hundred ten billion, eleven million, one hundred one thousand, two hundred eleven".