32430212221 has 12 divisors (see below), whose sum is σ = 36983489760. Its totient is φ = 28200179480.

The previous prime is 32430212209. The next prime is 32430212237. The reversal of 32430212221 is 12221203423.

It is not a de Polignac number, because 32430212221 - 2²⁵ = 32396657789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32430212192 and 32430212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32430212201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2780761 + ... + 2792398.

It is an arithmetic number, because the mean of its divisors is an integer number (3081957480).

Almost surely, 2^32430212221 is an apocalyptic number.

It is an amenable number.

32430212221 is a deficient number, since it is larger than the sum of its proper divisors (4553277539).

32430212221 is a wasteful number, since it uses less digits than its factorization.

32430212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573216 (or 5573193 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 32430212221 its reverse (12221203423), we get a palindrome (44651415644).

The spelling of 32430212221 in words is "thirty-two billion, four hundred thirty million, two hundred twelve thousand, two hundred twenty-one".