222135018 has 16 divisors (see below), whose sum is σ = 507737280. Its totient is φ = 63467136.

The previous prime is 222134981. The next prime is 222135029. The reversal of 222135018 is 810531222.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2644423 + ... + 2644506.

It is an arithmetic number, because the mean of its divisors is an integer number (31733580).

Almost surely, 2^222135018 is an apocalyptic number.

222135018 is an abundant number, since it is smaller than the sum of its proper divisors (285602262).

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

222135018 is a wasteful number, since it uses less digits than its factorization.

222135018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288941.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 222135018 is about 14904.1946444617. The cubic root of 222135018 is about 605.6276236173.

The spelling of 222135018 in words is "two hundred twenty-two million, one hundred thirty-five thousand, eighteen".