32000043221 has 8 divisors (see below), whose sum is σ = 34293819264. Its totient is φ = 29781473040.

The previous prime is 32000043203. The next prime is 32000043227. The reversal of 32000043221 is 12234000023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32000043221 - 2³⁰ = 30926301397 is a prime.

It is a super-2 number, since 2×32000043221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32000043221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32000043227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18800585 + ... + 18802286.

It is an arithmetic number, because the mean of its divisors is an integer number (4286727408).

Almost surely, 2^32000043221 is an apocalyptic number.

It is an amenable number.

32000043221 is a deficient number, since it is larger than the sum of its proper divisors (2293776043).

32000043221 is a wasteful number, since it uses less digits than its factorization.

32000043221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37602931.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 32000043221 its reverse (12234000023), we get a palindrome (44234043244).

The spelling of 32000043221 in words is "thirty-two billion, forty-three thousand, two hundred twenty-one".