4440032311221 has 24 divisors (see below), whose sum is σ = 6912364507776. Its totient is φ = 2730093369120.

The previous prime is 4440032311193. The next prime is 4440032311289. The reversal of 4440032311221 is 1221132300444.

4440032311221 is a `hidden beast` number, since 4 + 4 + 400 + 3 + 2 + 31 + 1 + 221 = 666.

It is not a de Polignac number, because 4440032311221 - 2⁹ = 4440032310709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440032311321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15371625 + ... + 15657806.

It is an arithmetic number, because the mean of its divisors is an integer number (288015187824).

Almost surely, 2^{4440032311221} is an apocalyptic number.

It is an amenable number.

4440032311221 is a deficient number, since it is larger than the sum of its proper divisors (2472332196555).

4440032311221 is a wasteful number, since it uses less digits than its factorization.

4440032311221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31030673 (or 31030670 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 4440032311221 its reverse (1221132300444), we get a palindrome (5661164611665).

The spelling of 4440032311221 in words is "four trillion, four hundred forty billion, thirty-two million, three hundred eleven thousand, two hundred twenty-one".