32212120221 has 12 divisors (see below), whose sum is σ = 46540247520. Its totient is φ = 21469379400.

The previous prime is 32212120207. The next prime is 32212120273. The reversal of 32212120221 is 12202121223.

32212120221 is a `hidden beast` number, since 322 + 1 + 2 + 120 + 221 = 666.

It is not a de Polignac number, because 32212120221 - 2⁵ = 32212120189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32212120194 and 32212120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32212120121) 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, 409105 + ... + 481446.

It is an arithmetic number, because the mean of its divisors is an integer number (3878353960).

Almost surely, 2^32212120221 is an apocalyptic number.

It is an amenable number.

32212120221 is a deficient number, since it is larger than the sum of its proper divisors (14328127299).

32212120221 is a wasteful number, since it uses less digits than its factorization.

32212120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894576 (or 894573 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 32212120221 its reverse (12202121223), we get a palindrome (44414241444).

It can be divided in two parts, 322121202 and 21, that added together give a palindrome (322121223).

The spelling of 32212120221 in words is "thirty-two billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty-one".