221113200989 has 2 divisors, whose sum is σ = 221113200990. Its totient is φ = 221113200988.

The previous prime is 221113200947. The next prime is 221113200991. The reversal of 221113200989 is 989002311122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212559725764 + 8553475225 = 461042^2 + 92485^2 .

It is a cyclic number.

It is not a de Polignac number, because 221113200989 - 2⁸ = 221113200733 is a prime.

It is a Sophie Germain prime.

Together with 221113200991, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221113200289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556600494 + 110556600495.

It is an arithmetic number, because the mean of its divisors is an integer number (110556600495).

Almost surely, 2^221113200989 is an apocalyptic number.

It is an amenable number.

221113200989 is a deficient number, since it is larger than the sum of its proper divisors (1).

221113200989 is an equidigital number, since it uses as much as digits as its factorization.

221113200989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 221113200989 in words is "two hundred twenty-one billion, one hundred thirteen million, two hundred thousand, nine hundred eighty-nine".