32223400021 has 4 divisors (see below), whose sum is σ = 32248361344. Its totient is φ = 32198438700.

The previous prime is 32223399983. The next prime is 32223400031. The reversal of 32223400021 is 12000432223.

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 32223400021 - 2¹⁹ = 32222875733 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 (32223400031) 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, 12478725 + ... + 12481306.

It is an arithmetic number, because the mean of its divisors is an integer number (8062090336).

Almost surely, 2^32223400021 is an apocalyptic number.

It is an amenable number.

32223400021 is a deficient number, since it is larger than the sum of its proper divisors (24961323).

32223400021 is a wasteful number, since it uses less digits than its factorization.

32223400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24961322.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 32223400021 its reverse (12000432223), we get a palindrome (44223832244).

The spelling of 32223400021 in words is "thirty-two billion, two hundred twenty-three million, four hundred thousand, twenty-one".