32012213221 has 8 divisors (see below), whose sum is σ = 32377052160. Its totient is φ = 31647488928.

The previous prime is 32012213197. The next prime is 32012213263. The reversal of 32012213221 is 12231221023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32012213221 - 2²⁹ = 31475342309 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 (32012213021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614620 + ... + 664666.

It is an arithmetic number, because the mean of its divisors is an integer number (4047131520).

Almost surely, 2^32012213221 is an apocalyptic number.

It is an amenable number.

32012213221 is a deficient number, since it is larger than the sum of its proper divisors (364838939).

32012213221 is an equidigital number, since it uses as much as digits as its factorization.

32012213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57323.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 32012213221 its reverse (12231221023), we get a palindrome (44243434244).

The spelling of 32012213221 in words is "thirty-two billion, twelve million, two hundred thirteen thousand, two hundred twenty-one".