218371122 has 24 divisors (see below), whose sum is σ = 476318700. Its totient is φ = 72300960.

The previous prime is 218371093. The next prime is 218371129. The reversal of 218371122 is 221173812.

218371122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 214944921 + 3426201 = 14661^2 + 1851^2 .

It is not an unprimeable number, because it can be changed into a prime (218371129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38029 + ... + 43392.

Almost surely, 2^218371122 is an apocalyptic number.

218371122 is an abundant number, since it is smaller than the sum of its proper divisors (257947578).

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

218371122 is a wasteful number, since it uses less digits than its factorization.

218371122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81578 (or 81575 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 218371122 is about 14777.3854927047. The cubic root of 218371122 is about 602.1874983925.

The spelling of 218371122 in words is "two hundred eighteen million, three hundred seventy-one thousand, one hundred twenty-two".