218268022 has 32 divisors (see below), whose sum is σ = 397094400. Its totient is φ = 87952128.

The previous prime is 218268013. The next prime is 218268023. The reversal of 218268022 is 220862812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218268023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13254 + ... + 24742.

It is an arithmetic number, because the mean of its divisors is an integer number (12409200).

Almost surely, 2^218268022 is an apocalyptic number.

218268022 is a deficient number, since it is larger than the sum of its proper divisors (178826378).

218268022 is a wasteful number, since it uses less digits than its factorization.

218268022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11580.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 218268022 is about 14773.8966423892. The cubic root of 218268022 is about 602.0927128062.

The spelling of 218268022 in words is "two hundred eighteen million, two hundred sixty-eight thousand, twenty-two".