221100112220011 has 2 divisors, whose sum is σ = 221100112220012. Its totient is φ = 221100112220010.

The previous prime is 221100112219949. The next prime is 221100112220083. The reversal of 221100112220011 is 110022211001122.

221100112220011 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 221100112220011 - 2¹³ = 221100112211819 is a prime.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (221100112220711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550056110005 + 110550056110006.

It is an arithmetic number, because the mean of its divisors is an integer number (110550056110006).

Almost surely, 2^{221100112220011} is an apocalyptic number.

221100112220011 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100112220011 is an equidigital number, since it uses as much as digits as its factorization.

221100112220011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221100112220011 its reverse (110022211001122), we get a palindrome (331122323221133).

The spelling of 221100112220011 in words is "two hundred twenty-one trillion, one hundred billion, one hundred twelve million, two hundred twenty thousand, eleven".