221100111011099 has 2 divisors, whose sum is σ = 221100111011100. Its totient is φ = 221100111011098.

The previous prime is 221100111011081. The next prime is 221100111011209. The reversal of 221100111011099 is 990110111001122.

221100111011099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221100111011099 - 2³² = 221095816043803 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (221100111011009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550055505549 + 110550055505550.

It is an arithmetic number, because the mean of its divisors is an integer number (110550055505550).

Almost surely, 2^{221100111011099} is an apocalyptic number.

221100111011099 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100111011099 is an equidigital number, since it uses as much as digits as its factorization.

221100111011099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 29.

The spelling of 221100111011099 in words is "two hundred twenty-one trillion, one hundred billion, one hundred eleven million, eleven thousand, ninety-nine".