2112115722 has 8 divisors (see below), whose sum is σ = 4224231456. Its totient is φ = 704038572.

The previous prime is 2112115699. The next prime is 2112115723. The reversal of 2112115722 is 2275112112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2112115722 is an admirable number.

It is a super-2 number, since 2×2112115722² = 8922065646239162568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112115692 and 2112115701.

It is not an unprimeable number, because it can be changed into a prime (2112115723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176009638 + ... + 176009649.

It is an arithmetic number, because the mean of its divisors is an integer number (528028932).

Almost surely, 2^2112115722 is an apocalyptic number.

2112115722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2112115722 is a wasteful number, since it uses less digits than its factorization.

2112115722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352019292.

The product of its digits is 560, while the sum is 24.

The square root of 2112115722 is about 45957.7601934646. The cubic root of 2112115722 is about 1283.0371647956.

Adding to 2112115722 its reverse (2275112112), we get a palindrome (4387227834).

The spelling of 2112115722 in words is "two billion, one hundred twelve million, one hundred fifteen thousand, seven hundred twenty-two".