43443221041220 has 576 divisors, whose sum is σ = 132698475576576. Its totient is φ = 11702827745280.

The previous prime is 43443221041193. The next prime is 43443221041313. The reversal of 43443221041220 is 2214012234434.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 459752099 + ... + 459846581.

It is an arithmetic number, because the mean of its divisors is an integer number (230379297876).

Almost surely, 2^{43443221041220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43443221041220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66349237788288).

43443221041220 is an abundant number, since it is smaller than the sum of its proper divisors (89255254535356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43443221041220 is a wasteful number, since it uses less digits than its factorization.

43443221041220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94740 (or 94731 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 43443221041220 its reverse (2214012234434), we get a palindrome (45657233275654).

The spelling of 43443221041220 in words is "forty-three trillion, four hundred forty-three billion, two hundred twenty-one million, forty-one thousand, two hundred twenty".