221450041 has 12 divisors (see below), whose sum is σ = 239612148. Its totient is φ = 203954432.

The previous prime is 221450039. The next prime is 221450051. The reversal of 221450041 is 140054122.

It can be written as a sum of positive squares in 2 ways, for example, as 189640441 + 31809600 = 13771^2 + 5640^2 .

It is not a de Polignac number, because 221450041 - 2¹ = 221450039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221450051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34605 + ... + 40501.

It is an arithmetic number, because the mean of its divisors is an integer number (19967679).

Almost surely, 2^221450041 is an apocalyptic number.

It is an amenable number.

221450041 is a deficient number, since it is larger than the sum of its proper divisors (18162107).

221450041 is an equidigital number, since it uses as much as digits as its factorization.

221450041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008 (or 5961 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 221450041 is about 14881.1975660563. The cubic root of 221450041 is about 605.0044768924.

The spelling of 221450041 in words is "two hundred twenty-one million, four hundred fifty thousand, forty-one".