218422418202 has 24 divisors (see below), whose sum is σ = 477436617684. Its totient is φ = 72163158144.

The previous prime is 218422418141. The next prime is 218422418209. The reversal of 218422418202 is 202814224812.

218422418202 is a `hidden beast` number, since 2 + 18 + 4 + 22 + 418 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 150008261481 + 68414156721 = 387309^2 + 261561^2 .

It is not an unprimeable number, because it can be changed into a prime (218422418209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53690793 + ... + 53694860.

Almost surely, 2^218422418202 is an apocalyptic number.

218422418202 is an abundant number, since it is smaller than the sum of its proper divisors (259014199482).

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

218422418202 is a wasteful number, since it uses less digits than its factorization.

218422418202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107385774 (or 107385771 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The spelling of 218422418202 in words is "two hundred eighteen billion, four hundred twenty-two million, four hundred eighteen thousand, two hundred two".