444632016222021 has 16 divisors (see below), whose sum is σ = 600596030223360. Its totient is φ = 292547785735920.

The previous prime is 444632016222013. The next prime is 444632016222077. The reversal of 444632016222021 is 120222610236444.

It is not a de Polignac number, because 444632016222021 - 2³ = 444632016222013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444632016222091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388496295 + ... + 389639108.

It is an arithmetic number, because the mean of its divisors is an integer number (37537251888960).

Almost surely, 2^{444632016222021} is an apocalyptic number.

It is an amenable number.

444632016222021 is a deficient number, since it is larger than the sum of its proper divisors (155964014001339).

444632016222021 is a wasteful number, since it uses less digits than its factorization.

444632016222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778137896.

The product of its (nonzero) digits is 221184, while the sum is 39.

Adding to 444632016222021 its reverse (120222610236444), we get a palindrome (564854626458465).

The spelling of 444632016222021 in words is "four hundred forty-four trillion, six hundred thirty-two billion, sixteen million, two hundred twenty-two thousand, twenty-one".