2221323112 has 16 divisors (see below), whose sum is σ = 4189923360. Its totient is φ = 1104010224.

The previous prime is 2221323101. The next prime is 2221323119. The reversal of 2221323112 is 2113231222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221323112.

It is not an unprimeable number, because it can be changed into a prime (2221323119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829998 + ... + 832669.

It is an arithmetic number, because the mean of its divisors is an integer number (261870210).

Almost surely, 2^2221323112 is an apocalyptic number.

It is an amenable number.

2221323112 is a deficient number, since it is larger than the sum of its proper divisors (1968600248).

2221323112 is a wasteful number, since it uses less digits than its factorization.

2221323112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662840 (or 1662836 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2221323112 is about 47130.9146102640. The cubic root of 2221323112 is about 1304.7798617727.

Adding to 2221323112 its reverse (2113231222), we get a palindrome (4334554334).

The spelling of 2221323112 in words is "two billion, two hundred twenty-one million, three hundred twenty-three thousand, one hundred twelve".