229211218 has 8 divisors (see below), whose sum is σ = 347221260. Its totient is φ = 113470800.

The previous prime is 229211209. The next prime is 229211233. The reversal of 229211218 is 812112922.

It can be written as a sum of positive squares in 2 ways, for example, as 141919569 + 87291649 = 11913^2 + 9343^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567153 + ... + 567556.

Almost surely, 2^229211218 is an apocalyptic number.

229211218 is a deficient number, since it is larger than the sum of its proper divisors (118010042).

229211218 is a wasteful number, since it uses less digits than its factorization.

229211218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134812.

The product of its digits is 1152, while the sum is 28.

The square root of 229211218 is about 15139.7231810889. The cubic root of 229211218 is about 611.9913582587.

The spelling of 229211218 in words is "two hundred twenty-nine million, two hundred eleven thousand, two hundred eighteen".