2112222340 has 12 divisors (see below), whose sum is σ = 4435666956. Its totient is φ = 844888928.

The previous prime is 2112222331. The next prime is 2112222349. The reversal of 2112222340 is 432222112.

It is an interprime number because it is at equal distance from previous prime (2112222331) and next prime (2112222349).

It can be written as a sum of positive squares in 2 ways, for example, as 1138657536 + 973564804 = 33744^2 + 31202^2 .

It is a super-2 number, since 2×2112222340² = 8922966427190151200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112222349) 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, 52805539 + ... + 52805578.

It is an arithmetic number, because the mean of its divisors is an integer number (369638913).

Almost surely, 2^2112222340 is an apocalyptic number.

2112222340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112222340 is an abundant number, since it is smaller than the sum of its proper divisors (2323444616).

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

2112222340 is a wasteful number, since it uses less digits than its factorization.

2112222340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105611126 (or 105611124 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2112222340 is about 45958.9201352686. The cubic root of 2112222340 is about 1283.0587533467.

Adding to 2112222340 its reverse (432222112), we get a palindrome (2544444452).

The spelling of 2112222340 in words is "two billion, one hundred twelve million, two hundred twenty-two thousand, three hundred forty".