2112020440 has 32 divisors (see below), whose sum is σ = 4761179280. Its totient is φ = 843184512.

The previous prime is 2112020429. The next prime is 2112020441. The reversal of 2112020440 is 440202112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112020441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29559 + ... + 71398.

Almost surely, 2^2112020440 is an apocalyptic number.

2112020440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112020440 is an abundant number, since it is smaller than the sum of its proper divisors (2649158840).

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

2112020440 is a wasteful number, since it uses less digits than its factorization.

2112020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101491 (or 101487 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2112020440 is about 45956.7235559717. The cubic root of 2112020440 is about 1283.0178710002.

Adding to 2112020440 its reverse (440202112), we get a palindrome (2552222552).

The spelling of 2112020440 in words is "two billion, one hundred twelve million, twenty thousand, four hundred forty".