218822022 has 24 divisors (see below), whose sum is σ = 474654960. Its totient is φ = 72857520.

The previous prime is 218821987. The next prime is 218822027. The reversal of 218822022 is 220228812.

218822022 is digitally balanced in base 2, 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 (218822027) 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, 10479 + ... + 23397.

It is an arithmetic number, because the mean of its divisors is an integer number (19777290).

Almost surely, 2^218822022 is an apocalyptic number.

218822022 is an abundant number, since it is smaller than the sum of its proper divisors (255832938).

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

218822022 is a wasteful number, since it uses less digits than its factorization.

218822022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13868 (or 13865 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 218822022 is about 14792.6340453619. The cubic root of 218822022 is about 602.6016857464.

The spelling of 218822022 in words is "two hundred eighteen million, eight hundred twenty-two thousand, twenty-two".