32220213212 has 96 divisors (see below), whose sum is σ = 64221341184. Its totient is φ = 14017248000.

The previous prime is 32220213191. The next prime is 32220213307. The reversal of 32220213212 is 21231202223.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19681658 + ... + 19683294.

It is an arithmetic number, because the mean of its divisors is an integer number (668972304).

Almost surely, 2^32220213212 is an apocalyptic number.

It is an amenable number.

32220213212 is a deficient number, since it is larger than the sum of its proper divisors (32001127972).

32220213212 is a wasteful number, since it uses less digits than its factorization.

32220213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 32220213212 its reverse (21231202223), we get a palindrome (53451415435).

The spelling of 32220213212 in words is "thirty-two billion, two hundred twenty million, two hundred thirteen thousand, two hundred twelve".