218226001 has 16 divisors (see below), whose sum is σ = 273945600. Its totient is φ = 169499088.

The previous prime is 218225999. The next prime is 218226011. The reversal of 218226001 is 100622812.

It is a cyclic number.

It is not a de Polignac number, because 218226001 - 2¹ = 218225999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218226011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32611 + ... + 38728.

It is an arithmetic number, because the mean of its divisors is an integer number (17121600).

Almost surely, 2^218226001 is an apocalyptic number.

It is an amenable number.

218226001 is a deficient number, since it is larger than the sum of its proper divisors (55719599).

218226001 is a wasteful number, since it uses less digits than its factorization.

218226001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71388.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 218226001 is about 14772.4744372769. The cubic root of 218226001 is about 602.0540719929.

Adding to 218226001 its reverse (100622812), we get a palindrome (318848813).

The spelling of 218226001 in words is "two hundred eighteen million, two hundred twenty-six thousand, one".