2183223812 has 72 divisors (see below), whose sum is σ = 4897804800. Its totient is φ = 850542000.

The previous prime is 2183223811. The next prime is 2183223829.

2183223812 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2183223812² = 9532932426567622688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183223811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159437 + ... + 172587.

Almost surely, 2^2183223812 is an apocalyptic number.

2183223812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2183223812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2448902400).

2183223812 is an abundant number, since it is smaller than the sum of its proper divisors (2714580988).

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

2183223812 is a wasteful number, since it uses less digits than its factorization.

2183223812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13198 (or 13171 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 2183223812 is about 46724.9805992469. The cubic root of 2183223812 is about 1297.2771039354.

The spelling of 2183223812 in words is "two billion, one hundred eighty-three million, two hundred twenty-three thousand, eight hundred twelve".