21100233322211 has 2 divisors, whose sum is σ = 21100233322212. Its totient is φ = 21100233322210.

The previous prime is 21100233322177. The next prime is 21100233322219. The reversal of 21100233322211 is 11222333200112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21100233322211 - 2¹⁰ = 21100233321187 is a prime.

It is not a weakly prime, because it can be changed into another prime (21100233322219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550116661105 + 10550116661106.

It is an arithmetic number, because the mean of its divisors is an integer number (10550116661106).

Almost surely, 2^{21100233322211} is an apocalyptic number.

21100233322211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21100233322211 is an equidigital number, since it uses as much as digits as its factorization.

21100233322211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21100233322211 its reverse (11222333200112), we get a palindrome (32322566522323).

The spelling of 21100233322211 in words is "twenty-one trillion, one hundred billion, two hundred thirty-three million, three hundred twenty-two thousand, two hundred eleven".