32222020221 has 6 divisors (see below), whose sum is σ = 46542918110. Its totient is φ = 21481346808.

The previous prime is 32222020211. The next prime is 32222020277. The reversal of 32222020221 is 12202022223.

It can be written as a sum of positive squares in only one way, i.e., 21137088996 + 11084931225 = 145386^2 + 105285^2 .

It is not a de Polignac number, because 32222020221 - 2⁶ = 32222020157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32222020194 and 32222020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32222020211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1790112226 + ... + 1790112243.

Almost surely, 2^32222020221 is an apocalyptic number.

It is an amenable number.

32222020221 is a deficient number, since it is larger than the sum of its proper divisors (14320897889).

32222020221 is a wasteful number, since it uses less digits than its factorization.

32222020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580224475 (or 3580224472 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 32222020221 its reverse (12202022223), we get a palindrome (44424042444).

The spelling of 32222020221 in words is "thirty-two billion, two hundred twenty-two million, twenty thousand, two hundred twenty-one".