32220000012 has 12 divisors (see below), whose sum is σ = 75180000056. Its totient is φ = 10740000000.

The previous prime is 32219999953. The next prime is 32220000031. The reversal of 32220000012 is 21000002223.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 2685000001 = 32220000012 / (3 + 2 + 2 + 2 + 0 + 0 + 0 + 0 + 0 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342499989 + ... + 1342500012.

Almost surely, 2^32220000012 is an apocalyptic number.

It is an amenable number.

32220000012 is an abundant number, since it is smaller than the sum of its proper divisors (42960000044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32220000012 is a wasteful number, since it uses less digits than its factorization.

32220000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685000008 (or 2685000006 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 32220000012 its reverse (21000002223), we get a palindrome (53220002235).

The spelling of 32220000012 in words is "thirty-two billion, two hundred twenty million, twelve", and thus it is an aban number.