2112223320 has 96 divisors (see below), whose sum is σ = 6882829200. Its totient is φ = 561774336.

The previous prime is 2112223319. The next prime is 2112223349. The reversal of 2112223320 is 233222112.

It is a super-2 number, since 2×2112223320² = 8922974707103644800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2112223293 and 2112223302.

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 23 ways as a sum of consecutive naturals, for example, 132499 + ... + 147581.

Almost surely, 2^2112223320 is an apocalyptic number.

2112223320 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 2112223320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3441414600).

2112223320 is an abundant number, since it is smaller than the sum of its proper divisors (4770605880).

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

2112223320 is a wasteful number, since it uses less digits than its factorization.

2112223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15489 (or 15482 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2112223320 is about 45958.9307969626. The cubic root of 2112223320 is about 1283.0589517787.

Adding to 2112223320 its reverse (233222112), we get a palindrome (2345445432).

The spelling of 2112223320 in words is "two billion, one hundred twelve million, two hundred twenty-three thousand, three hundred twenty".