2112223440 has 160 divisors (see below), whose sum is σ = 6942698496. Its totient is φ = 530288640.

The previous prime is 2112223411. The next prime is 2112223453. The reversal of 2112223440 is 443222112.

2112223440 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2112223440² = 8922975720970867200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271444 + ... + 279116.

Almost surely, 2^2112223440 is an apocalyptic number.

2112223440 is a gapful number since it is divisible by the number (20) 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 2112223440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3471349248).

2112223440 is an abundant number, since it is smaller than the sum of its proper divisors (4830475056).

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

2112223440 is a wasteful number, since it uses less digits than its factorization.

2112223440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757 (or 7751 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2112223440 is about 45958.9321024760. The cubic root of 2112223440 is about 1283.0589760765.

Adding to 2112223440 its reverse (443222112), we get a palindrome (2555445552).

The spelling of 2112223440 in words is "two billion, one hundred twelve million, two hundred twenty-three thousand, four hundred forty".