1441712221 has 2 divisors, whose sum is σ = 1441712222. Its totient is φ = 1441712220.

The previous prime is 1441712219. The next prime is 1441712227. The reversal of 1441712221 is 1222171441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1238336100 + 203376121 = 35190^2 + 14261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441712221 - 2¹ = 1441712219 is a prime.

Together with 1441712219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441712227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720856110 + 720856111.

It is an arithmetic number, because the mean of its divisors is an integer number (720856111).

Almost surely, 2^1441712221 is an apocalyptic number.

It is an amenable number.

1441712221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441712221 is an equidigital number, since it uses as much as digits as its factorization.

1441712221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 25.

The square root of 1441712221 is about 37969.8857122325. The cubic root of 1441712221 is about 1129.6906300607.

Adding to 1441712221 its reverse (1222171441), we get a palindrome (2663883662).

The spelling of 1441712221 in words is "one billion, four hundred forty-one million, seven hundred twelve thousand, two hundred twenty-one".