2223221112 has 48 divisors (see below), whose sum is σ = 6881400240. Its totient is φ = 635205888.

The previous prime is 2223221111. The next prime is 2223221137. The reversal of 2223221112 is 2111223222.

It is a super-2 number, since 2×2223221112² = 9885424225685033088, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223221111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2205073 + ... + 2206080.

It is an arithmetic number, because the mean of its divisors is an integer number (143362505).

Almost surely, 2^2223221112 is an apocalyptic number.

It is an amenable number.

2223221112 is an abundant number, since it is smaller than the sum of its proper divisors (4658179128).

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

2223221112 is a wasteful number, since it uses less digits than its factorization.

2223221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411172 (or 4411165 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2223221112 is about 47151.0457148089. The cubic root of 2223221112 is about 1305.1513771640.

Adding to 2223221112 its reverse (2111223222), we get a palindrome (4334444334).

The spelling of 2223221112 in words is "two billion, two hundred twenty-three million, two hundred twenty-one thousand, one hundred twelve".