218122134245 has 24 divisors (see below), whose sum is σ = 271186755840. Its totient is φ = 168416400320.

The previous prime is 218122134227. The next prime is 218122134257. The reversal of 218122134245 is 542431221812.

218122134245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 218122134245 - 2²⁶ = 218055025381 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13107080 + ... + 13123710.

It is an arithmetic number, because the mean of its divisors is an integer number (11299448160).

Almost surely, 2^218122134245 is an apocalyptic number.

It is an amenable number.

218122134245 is a deficient number, since it is larger than the sum of its proper divisors (53064621595).

218122134245 is a wasteful number, since it uses less digits than its factorization.

218122134245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19813 (or 19784 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The spelling of 218122134245 in words is "two hundred eighteen billion, one hundred twenty-two million, one hundred thirty-four thousand, two hundred forty-five".