444462000221 has 2 divisors, whose sum is σ = 444462000222. Its totient is φ = 444462000220.

The previous prime is 444462000211. The next prime is 444462000247. The reversal of 444462000221 is 122000264444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444082296025 + 379704196 = 666395^2 + 19486^2 .

It is a cyclic number.

It is not a de Polignac number, because 444462000221 - 2¹⁰ = 444461999197 is a prime.

It is a super-4 number, since 4×444462000221⁴ (a number of 48 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444462000211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222231000110 + 222231000111.

It is an arithmetic number, because the mean of its divisors is an integer number (222231000111).

Almost surely, 2^444462000221 is an apocalyptic number.

It is an amenable number.

444462000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

444462000221 is an equidigital number, since it uses as much as digits as its factorization.

444462000221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 444462000221 its reverse (122000264444), we get a palindrome (566462264665).

The spelling of 444462000221 in words is "four hundred forty-four billion, four hundred sixty-two million, two hundred twenty-one", and thus it is an aban number.