2112200540 has 24 divisors (see below), whose sum is σ = 4436485872. Its totient is φ = 844715520.

The previous prime is 2112200509. The next prime is 2112200543. The reversal of 2112200540 is 450022112.

It is a super-4 number, since 4×2112200540⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200543) 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, 188495 + ... + 199385.

It is an arithmetic number, because the mean of its divisors is an integer number (184853578).

Almost surely, 2^2112200540 is an apocalyptic number.

2112200540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112200540 is an abundant number, since it is smaller than the sum of its proper divisors (2324285332).

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

2112200540 is a wasteful number, since it uses less digits than its factorization.

2112200540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20597 (or 20595 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2112200540 is about 45958.6829663340. The cubic root of 2112200540 is about 1283.0543392317.

Adding to 2112200540 its reverse (450022112), we get a palindrome (2562222652).

The spelling of 2112200540 in words is "two billion, one hundred twelve million, two hundred thousand, five hundred forty".