2112505516 has 12 divisors (see below), whose sum is σ = 4032965160. Its totient is φ = 960229760.

The previous prime is 2112505501. The next prime is 2112505517. The reversal of 2112505516 is 6155052112.

It is not an unprimeable number, because it can be changed into a prime (2112505517) 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, 24005701 + ... + 24005788.

It is an arithmetic number, because the mean of its divisors is an integer number (336080430).

Almost surely, 2^2112505516 is an apocalyptic number.

It is an amenable number.

2112505516 is a deficient number, since it is larger than the sum of its proper divisors (1920459644).

2112505516 is a wasteful number, since it uses less digits than its factorization.

2112505516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48011504 (or 48011502 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 2112505516 is about 45962.0007832557. Note that the first 3 decimals coincide. The cubic root of 2112505516 is about 1283.1160887265.

Adding to 2112505516 its reverse (6155052112), we get a palindrome (8267557628).

The spelling of 2112505516 in words is "two billion, one hundred twelve million, five hundred five thousand, five hundred sixteen".