320221110012 has 12 divisors (see below), whose sum is σ = 747182590056. Its totient is φ = 106740370000.

The previous prime is 320221109993. The next prime is 320221110017. The reversal of 320221110012 is 210011122023.

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 = 320221109973 and 320221110000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320221110017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13342546239 + ... + 13342546262.

It is an arithmetic number, because the mean of its divisors is an integer number (62265215838).

Almost surely, 2^320221110012 is an apocalyptic number.

It is an amenable number.

320221110012 is an abundant number, since it is smaller than the sum of its proper divisors (426961480044).

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

320221110012 is a wasteful number, since it uses less digits than its factorization.

320221110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26685092508 (or 26685092506 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 320221110012 its reverse (210011122023), we get a palindrome (530232232035).

The spelling of 320221110012 in words is "three hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, twelve".