2220312311 has 8 divisors (see below), whose sum is σ = 2542671744. Its totient is φ = 1899245880.

The previous prime is 2220312299. The next prime is 2220312313. The reversal of 2220312311 is 1132130222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2220312311 - 2³⁰ = 1146570487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220312311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220312313) 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 7 ways as a sum of consecutive naturals, for example, 319565 + ... + 326438.

It is an arithmetic number, because the mean of its divisors is an integer number (317833968).

Almost surely, 2^2220312311 is an apocalyptic number.

2220312311 is a deficient number, since it is larger than the sum of its proper divisors (322359433).

2220312311 is an equidigital number, since it uses as much as digits as its factorization.

2220312311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646501.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2220312311 is about 47120.1900569172. The cubic root of 2220312311 is about 1304.5819207526.

Adding to 2220312311 its reverse (1132130222), we get a palindrome (3352442533).

The spelling of 2220312311 in words is "two billion, two hundred twenty million, three hundred twelve thousand, three hundred eleven".