4444400301021 has 12 divisors (see below), whose sum is σ = 6420526519420. Its totient is φ = 2962547136000.

The previous prime is 4444400301007. The next prime is 4444400301053. The reversal of 4444400301021 is 1201030044444.

It can be written as a sum of positive squares in 2 ways, for example, as 2160414927225 + 2283985373796 = 1469835^2 + 1511286^2 .

It is not a de Polignac number, because 4444400301021 - 2⁴¹ = 2245377045469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444400301071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32126980 + ... + 32265021.

Almost surely, 2^{4444400301021} is an apocalyptic number.

It is an amenable number.

4444400301021 is a deficient number, since it is larger than the sum of its proper divisors (1976126218399).

4444400301021 is a wasteful number, since it uses less digits than its factorization.

4444400301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64399676 (or 64399673 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 4444400301021 its reverse (1201030044444), we get a palindrome (5645430345465).

The spelling of 4444400301021 in words is "four trillion, four hundred forty-four billion, four hundred million, three hundred one thousand, twenty-one".