2112189899 has 4 divisors (see below), whose sum is σ = 2138926560. Its totient is φ = 2085453240.

The previous prime is 2112189887. The next prime is 2112189913. The reversal of 2112189899 is 9989812112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112189899 - 2¹⁶ = 2112124363 is a prime.

It is a super-2 number, since 2×2112189899² = 8922692338875260402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112189809) 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, 13368212 + ... + 13368369.

It is an arithmetic number, because the mean of its divisors is an integer number (534731640).

Almost surely, 2^2112189899 is an apocalyptic number.

2112189899 is a deficient number, since it is larger than the sum of its proper divisors (26736661).

2112189899 is an equidigital number, since it uses as much as digits as its factorization.

2112189899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26736660.

The product of its digits is 186624, while the sum is 50.

The square root of 2112189899 is about 45958.5671991632. The cubic root of 2112189899 is about 1283.0521846061.

The spelling of 2112189899 in words is "two billion, one hundred twelve million, one hundred eighty-nine thousand, eight hundred ninety-nine".