321002022012 has 48 divisors (see below), whose sum is σ = 864830211840. Its totient is φ = 90769347072.

The previous prime is 321002021987. The next prime is 321002022031. The reversal of 321002022012 is 210220200123.

It is a happy number.

321002022012 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 321002021982 and 321002022000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19690062 + ... + 19706357.

It is an arithmetic number, because the mean of its divisors is an integer number (18017296080).

Almost surely, 2^321002022012 is an apocalyptic number.

It is an amenable number.

321002022012 is an abundant number, since it is smaller than the sum of its proper divisors (543828189828).

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

321002022012 is a wasteful number, since it uses less digits than its factorization.

321002022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39396530 (or 39396528 counting only the distinct ones).

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

Adding to 321002022012 its reverse (210220200123), we get a palindrome (531222222135).

The spelling of 321002022012 in words is "three hundred twenty-one billion, two million, twenty-two thousand, twelve".