443334042221021 has 16 divisors (see below), whose sum is σ = 509032227264000. Its totient is φ = 378228037586688.

The previous prime is 443334042221003. The next prime is 443334042221027. The reversal of 443334042221021 is 120122240433344.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 443334042221021 - 2²⁶ = 443333975112157 is a prime.

It is a super-2 number, since 2×443334042221021² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443334042221027) 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, 36005996 + ... + 46723653.

It is an arithmetic number, because the mean of its divisors is an integer number (31814514204000).

Almost surely, 2^{443334042221021} is an apocalyptic number.

It is an amenable number.

443334042221021 is a deficient number, since it is larger than the sum of its proper divisors (65698185042979).

443334042221021 is a wasteful number, since it uses less digits than its factorization.

443334042221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82733228.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 443334042221021 its reverse (120122240433344), we get a palindrome (563456282654365).

The spelling of 443334042221021 in words is "four hundred forty-three trillion, three hundred thirty-four billion, forty-two million, two hundred twenty-one thousand, twenty-one".