2221313312 has 24 divisors (see below), whose sum is σ = 4407653376. Its totient is φ = 1101909312.

The previous prime is 2221313309. The next prime is 2221313317. The reversal of 2221313312 is 2133131222.

It is not an unprimeable number, because it can be changed into a prime (2221313317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269228 + ... + 277355.

It is an arithmetic number, because the mean of its divisors is an integer number (183652224).

Almost surely, 2^2221313312 is an apocalyptic number.

It is an amenable number.

2221313312 is a deficient number, since it is larger than the sum of its proper divisors (2186340064).

2221313312 is a wasteful number, since it uses less digits than its factorization.

2221313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546720 (or 546712 counting only the distinct ones).

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

The square root of 2221313312 is about 47130.8106444182. The cubic root of 2221313312 is about 1304.7779429672. Note that the first 3 decimals are identical.

Adding to 2221313312 its reverse (2133131222), we get a palindrome (4354444534).

The spelling of 2221313312 in words is "two billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred twelve".