3311002213220 has 192 divisors, whose sum is σ = 8021994624000. Its totient is φ = 1137650241024.

The previous prime is 3311002213177. The next prime is 3311002213223. The reversal of 3311002213220 is 223122001133.

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 = 3311002213192 and 3311002213201.

It is not an unprimeable number, because it can be changed into a prime (3311002213223) 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, 443889851 + ... + 443897309.

It is an arithmetic number, because the mean of its divisors is an integer number (41781222000).

Almost surely, 2^{3311002213220} 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 3311002213220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4010997312000).

3311002213220 is an abundant number, since it is smaller than the sum of its proper divisors (4710992410780).

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

3311002213220 is a wasteful number, since it uses less digits than its factorization.

3311002213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9082 (or 9080 counting only the distinct ones).

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

Adding to 3311002213220 its reverse (223122001133), we get a palindrome (3534124214353).

The spelling of 3311002213220 in words is "three trillion, three hundred eleven billion, two million, two hundred thirteen thousand, two hundred twenty".