3001321213220 has 192 divisors, whose sum is σ = 7850298435840. Its totient is φ = 949391769600.

The previous prime is 3001321213213. The next prime is 3001321213223. The reversal of 3001321213220 is 223121231003.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3001321213192 and 3001321213201.

It is not an unprimeable number, because it can be changed into a prime (3001321213223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2398382 + ... + 3428538.

It is an arithmetic number, because the mean of its divisors is an integer number (40886971020).

Almost surely, 2^{3001321213220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3001321213220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3925149217920).

3001321213220 is an abundant number, since it is smaller than the sum of its proper divisors (4848977222620).

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

3001321213220 is a wasteful number, since it uses less digits than its factorization.

3001321213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030254 (or 1030252 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3001321213220 its reverse (223121231003), we get a palindrome (3224442444223).

The spelling of 3001321213220 in words is "three trillion, one billion, three hundred twenty-one million, two hundred thirteen thousand, two hundred twenty".