2112000561 has 40 divisors (see below), whose sum is σ = 3474101664. Its totient is φ = 1267980480.

The previous prime is 2112000547. The next prime is 2112000563. The reversal of 2112000561 is 1650002112.

2112000561 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2112000561 - 2⁵ = 2112000529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2112000563) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 84261 + ... + 106413.

Almost surely, 2^2112000561 is an apocalyptic number.

It is an amenable number.

2112000561 is a deficient number, since it is larger than the sum of its proper divisors (1362101103).

2112000561 is a wasteful number, since it uses less digits than its factorization.

2112000561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22283 (or 22274 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2112000561 is about 45956.5072759016. The cubic root of 2112000561 is about 1283.0138455985.

Adding to 2112000561 its reverse (1650002112), we get a palindrome (3762002673).

The spelling of 2112000561 in words is "two billion, one hundred twelve million, five hundred sixty-one", and thus it is an aban number.