444021101 has 2 divisors, whose sum is σ = 444021102. Its totient is φ = 444021100.

The previous prime is 444021037. The next prime is 444021119. The reversal of 444021101 is 101120444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342213001 + 101808100 = 18499^2 + 10090^2 .

It is a cyclic number.

It is not a de Polignac number, because 444021101 - 2⁶ = 444021037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 444021101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444021701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222010550 + 222010551.

It is an arithmetic number, because the mean of its divisors is an integer number (222010551).

Almost surely, 2^444021101 is an apocalyptic number.

It is an amenable number.

444021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

444021101 is an equidigital number, since it uses as much as digits as its factorization.

444021101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 444021101 is about 21071.8082043284. The cubic root of 444021101 is about 762.9004477597.

Adding to 444021101 its reverse (101120444), we get a palindrome (545141545).

The spelling of 444021101 in words is "four hundred forty-four million, twenty-one thousand, one hundred one".