221441113 has 2 divisors, whose sum is σ = 221441114. Its totient is φ = 221441112.

The previous prime is 221441093. The next prime is 221441131. The reversal of 221441113 is 311144122.

Together with next prime (221441131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182466064 + 38975049 = 13508^2 + 6243^2 .

It is a cyclic number.

It is not a de Polignac number, because 221441113 - 2²⁵ = 187886681 is a prime.

It is not a weakly prime, because it can be changed into another prime (221441413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110720556 + 110720557.

It is an arithmetic number, because the mean of its divisors is an integer number (110720557).

Almost surely, 2^221441113 is an apocalyptic number.

It is an amenable number.

221441113 is a deficient number, since it is larger than the sum of its proper divisors (1).

221441113 is an equidigital number, since it uses as much as digits as its factorization.

221441113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 221441113 is about 14880.8975871753. The cubic root of 221441113 is about 604.9963463113.

Adding to 221441113 its reverse (311144122), we get a palindrome (532585235).

The spelling of 221441113 in words is "two hundred twenty-one million, four hundred forty-one thousand, one hundred thirteen".