218112822 has 48 divisors (see below), whose sum is σ = 501817680. Its totient is φ = 68230656.

The previous prime is 218112821. The next prime is 218112827. The reversal of 218112822 is 228211812.

218112822 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218112821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134754 + ... + 136362.

It is an arithmetic number, because the mean of its divisors is an integer number (10454535).

Almost surely, 2^218112822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218112822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250908840).

218112822 is an abundant number, since it is smaller than the sum of its proper divisors (283704858).

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

218112822 is a wasteful number, since it uses less digits than its factorization.

218112822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077 (or 2074 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 218112822 is about 14768.6432010527. The cubic root of 218112822 is about 601.9499724802.

The spelling of 218112822 in words is "two hundred eighteen million, one hundred twelve thousand, eight hundred twenty-two".