2112209985 has 8 divisors (see below), whose sum is σ = 3379536000. Its totient is φ = 1126511984.

The previous prime is 2112209977. The next prime is 2112209989. The reversal of 2112209985 is 5899022112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112209985 - 2³ = 2112209977 is a prime.

It is a super-2 number, since 2×2112209985² = 8922862041467400450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112209989) 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, 70406985 + ... + 70407014.

It is an arithmetic number, because the mean of its divisors is an integer number (422442000).

Almost surely, 2^2112209985 is an apocalyptic number.

It is an amenable number.

2112209985 is a deficient number, since it is larger than the sum of its proper divisors (1267326015).

2112209985 is a wasteful number, since it uses less digits than its factorization.

2112209985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140814007.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 2112209985 is about 45958.7857215571. The cubic root of 2112209985 is about 1283.0562516811.

The spelling of 2112209985 in words is "two billion, one hundred twelve million, two hundred nine thousand, nine hundred eighty-five".