221100210241 has 2 divisors, whose sum is σ = 221100210242. Its totient is φ = 221100210240.

The previous prime is 221100210229. The next prime is 221100210259. The reversal of 221100210241 is 142012001122.

221100210241 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 can be written as a sum of positive squares in only one way, i.e., 173552227216 + 47547983025 = 416596^2 + 218055^2 .

It is a cyclic number.

It is not a de Polignac number, because 221100210241 - 2²⁵ = 221066655809 is a prime.

It is a super-2 number, since 2×221100210241² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221100210641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550105120 + 110550105121.

It is an arithmetic number, because the mean of its divisors is an integer number (110550105121).

Almost surely, 2^221100210241 is an apocalyptic number.

It is an amenable number.

221100210241 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100210241 is an equidigital number, since it uses as much as digits as its factorization.

221100210241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221100210241 its reverse (142012001122), we get a palindrome (363112211363).

The spelling of 221100210241 in words is "two hundred twenty-one billion, one hundred million, two hundred ten thousand, two hundred forty-one".