32130220221 has 36 divisors (see below), whose sum is σ = 51247868256. Its totient is φ = 19237839600.

The previous prime is 32130220211. The next prime is 32130220259. The reversal of 32130220221 is 12202203123.

32130220221 is a `hidden beast` number, since 321 + 302 + 20 + 2 + 21 = 666.

It is not a de Polignac number, because 32130220221 - 2¹¹ = 32130218173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32130220194 and 32130220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32130220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 658456 + ... + 705566.

It is an arithmetic number, because the mean of its divisors is an integer number (1423551896).

Almost surely, 2^32130220221 is an apocalyptic number.

It is an amenable number.

32130220221 is a deficient number, since it is larger than the sum of its proper divisors (19117648035).

32130220221 is a wasteful number, since it uses less digits than its factorization.

32130220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47294 (or 47208 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 32130220221 its reverse (12202203123), we get a palindrome (44332423344).

The spelling of 32130220221 in words is "thirty-two billion, one hundred thirty million, two hundred twenty thousand, two hundred twenty-one".