2112136218 has 12 divisors (see below), whose sum is σ = 4576295178. Its totient is φ = 704045400.

The previous prime is 2112136217. The next prime is 2112136267. The reversal of 2112136218 is 8126312112.

2112136218 is a `hidden beast` number, since 2 + 11 + 21 + 3 + 621 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1221292809 + 890843409 = 34947^2 + 29847^2 .

It is a super-2 number, since 2×2112136218² = 8922238806774687048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112136191 and 2112136200.

It is not an unprimeable number, because it can be changed into a prime (2112136217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58670433 + ... + 58670468.

Almost surely, 2^2112136218 is an apocalyptic number.

2112136218 is an abundant number, since it is smaller than the sum of its proper divisors (2464158960).

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

2112136218 is a wasteful number, since it uses less digits than its factorization.

2112136218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117340909 (or 117340906 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 2112136218 is about 45957.9831802920. The cubic root of 2112136218 is about 1283.0413149856.

The spelling of 2112136218 in words is "two billion, one hundred twelve million, one hundred thirty-six thousand, two hundred eighteen".