2222112720 has 160 divisors (see below), whose sum is σ = 7091010432. Its totient is φ = 575318016.

The previous prime is 2222112709. The next prime is 2222112779. The reversal of 2222112720 is 272112222.

2222112720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2032494 + ... + 2033586.

Almost surely, 2^2222112720 is an apocalyptic number.

2222112720 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 2222112720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3545505216).

2222112720 is an abundant number, since it is smaller than the sum of its proper divisors (4868897712).

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

2222112720 is a wasteful number, since it uses less digits than its factorization.

2222112720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2222112720 is about 47139.2906183366. The cubic root of 2222112720 is about 1304.9344457022.

Adding to 2222112720 its reverse (272112222), we get a palindrome (2494224942).

The spelling of 2222112720 in words is "two billion, two hundred twenty-two million, one hundred twelve thousand, seven hundred twenty".