2211320304 has 80 divisors (see below), whose sum is σ = 6357524640. Its totient is φ = 735920640.

The previous prime is 2211320299. The next prime is 2211320311. The reversal of 2211320304 is 4030231122.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 288684 + ... + 296244.

It is an arithmetic number, because the mean of its divisors is an integer number (79469058).

Almost surely, 2^2211320304 is an apocalyptic number.

2211320304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211320304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3178762320).

2211320304 is an abundant number, since it is smaller than the sum of its proper divisors (4146204336).

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

2211320304 is a wasteful number, since it uses less digits than its factorization.

2211320304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255 (or 8243 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2211320304 is about 47024.6776065504. The cubic root of 2211320304 is about 1302.8184028350.

Adding to 2211320304 its reverse (4030231122), we get a palindrome (6241551426).

The spelling of 2211320304 in words is "two billion, two hundred eleven million, three hundred twenty thousand, three hundred four".