218265134212 has 24 divisors (see below), whose sum is σ = 398588714496. Its totient is φ = 104383063488.

The previous prime is 218265134203. The next prime is 218265134249. The reversal of 218265134212 is 212431562812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3010573 + ... + 3082219.

It is an arithmetic number, because the mean of its divisors is an integer number (16607863104).

Almost surely, 2^218265134212 is an apocalyptic number.

It is an amenable number.

218265134212 is a deficient number, since it is larger than the sum of its proper divisors (180323580284).

218265134212 is a wasteful number, since it uses less digits than its factorization.

218265134212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104787 (or 104785 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The spelling of 218265134212 in words is "two hundred eighteen billion, two hundred sixty-five million, one hundred thirty-four thousand, two hundred twelve".