32221243421 has 4 divisors (see below), whose sum is σ = 33622167072. Its totient is φ = 30820319772.

The previous prime is 32221243409. The next prime is 32221243451. The reversal of 32221243421 is 12434212223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32221243421 - 2¹⁴ = 32221227037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32221243451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700461791 + ... + 700461836.

It is an arithmetic number, because the mean of its divisors is an integer number (8405541768).

Almost surely, 2^32221243421 is an apocalyptic number.

It is an amenable number.

32221243421 is a deficient number, since it is larger than the sum of its proper divisors (1400923651).

32221243421 is a wasteful number, since it uses less digits than its factorization.

32221243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400923650.

The product of its digits is 4608, while the sum is 26.

Adding to 32221243421 its reverse (12434212223), we get a palindrome (44655455644).

The spelling of 32221243421 in words is "thirty-two billion, two hundred twenty-one million, two hundred forty-three thousand, four hundred twenty-one".