2211312330 has 48 divisors (see below), whose sum is σ = 5846873760. Its totient is φ = 579687264.

The previous prime is 2211312317. The next prime is 2211312331. The reversal of 2211312330 is 332131122.

2211312330 is a `hidden beast` number, since 2 + 21 + 1 + 312 + 330 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2211312331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202912 + ... + 213531.

It is an arithmetic number, because the mean of its divisors is an integer number (121809870).

Almost surely, 2^2211312330 is an apocalyptic number.

2211312330 is an abundant number, since it is smaller than the sum of its proper divisors (3635561430).

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

2211312330 is a wasteful number, since it uses less digits than its factorization.

2211312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416515 (or 416512 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2211312330 is about 47024.5928212037. The cubic root of 2211312330 is about 1302.8168368496.

Adding to 2211312330 its reverse (332131122), we get a palindrome (2543443452).

It can be divided in two parts, 22113 and 12330, that added together give a palindrome (34443).

The spelling of 2211312330 in words is "two billion, two hundred eleven million, three hundred twelve thousand, three hundred thirty".