32021220012 has 12 divisors (see below), whose sum is σ = 74716180056. Its totient is φ = 10673740000.

The previous prime is 32021219999. The next prime is 32021220061. The reversal of 32021220012 is 21002212023.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 32021219973 and 32021220000.

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, 1334217489 + ... + 1334217512.

It is an arithmetic number, because the mean of its divisors is an integer number (6226348338).

Almost surely, 2^32021220012 is an apocalyptic number.

It is an amenable number.

32021220012 is an abundant number, since it is smaller than the sum of its proper divisors (42694960044).

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

32021220012 is a wasteful number, since it uses less digits than its factorization.

32021220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668435008 (or 2668435006 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 32021220012 its reverse (21002212023), we get a palindrome (53023432035).

The spelling of 32021220012 in words is "thirty-two billion, twenty-one million, two hundred twenty thousand, twelve".