222039866 has 8 divisors (see below), whose sum is σ = 337622484. Its totient is φ = 109499040.

The previous prime is 222039847. The next prime is 222039889. The reversal of 222039866 is 668930222.

222039866 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 195300625 + 26739241 = 13975^2 + 5171^2 .

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, 760265 + ... + 760556.

Almost surely, 2^222039866 is an apocalyptic number.

222039866 is a deficient number, since it is larger than the sum of its proper divisors (115582618).

222039866 is a wasteful number, since it uses less digits than its factorization.

222039866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520896.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 222039866 is about 14901.0021810615. The cubic root of 222039866 is about 605.5411373138.

The spelling of 222039866 in words is "two hundred twenty-two million, thirty-nine thousand, eight hundred sixty-six".