2112112240 has 80 divisors (see below), whose sum is σ = 5618068992. Its totient is φ = 723393792.

The previous prime is 2112112237. The next prime is 2112112259. The reversal of 2112112240 is 422112112.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2112112240² = 8922036228715635200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898747 + ... + 901093.

Almost surely, 2^2112112240 is an apocalyptic number.

2112112240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112112240 is an abundant number, since it is smaller than the sum of its proper divisors (3505956752).

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

2112112240 is a wasteful number, since it uses less digits than its factorization.

2112112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974 (or 3968 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2112112240 is about 45957.7223108369. The cubic root of 2112112240 is about 1283.0364597304.

Adding to 2112112240 its reverse (422112112), we get a palindrome (2534224352).

The spelling of 2112112240 in words is "two billion, one hundred twelve million, one hundred twelve thousand, two hundred forty".