218200022 has 4 divisors (see below), whose sum is σ = 327300036. Its totient is φ = 109100010.

The previous prime is 218200001. The next prime is 218200033. The reversal of 218200022 is 220002812.

218200022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×218200022² = 95222499201600968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54550004 + ... + 54550007.

It is an arithmetic number, because the mean of its divisors is an integer number (81825009).

Almost surely, 2^218200022 is an apocalyptic number.

218200022 is a deficient number, since it is larger than the sum of its proper divisors (109100014).

218200022 is a wasteful number, since it uses less digits than its factorization.

218200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109100013.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 218200022 is about 14771.5951068258. The cubic root of 218200022 is about 602.0301802730.

Adding to 218200022 its reverse (220002812), we get a palindrome (438202834).

The spelling of 218200022 in words is "two hundred eighteen million, two hundred thousand, twenty-two".