1441163221 has 2 divisors, whose sum is σ = 1441163222. Its totient is φ = 1441163220.

The previous prime is 1441163203. The next prime is 1441163249. The reversal of 1441163221 is 1223611441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1420460721 + 20702500 = 37689^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441163221 - 2⁷ = 1441163093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441163201) 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, 720581610 + 720581611.

It is an arithmetic number, because the mean of its divisors is an integer number (720581611).

Almost surely, 2^1441163221 is an apocalyptic number.

It is an amenable number.

1441163221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441163221 is an equidigital number, since it uses as much as digits as its factorization.

1441163221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 1441163221 is about 37962.6556104812. The cubic root of 1441163221 is about 1129.5472175065.

Adding to 1441163221 its reverse (1223611441), we get a palindrome (2664774662).

The spelling of 1441163221 in words is "one billion, four hundred forty-one million, one hundred sixty-three thousand, two hundred twenty-one".