222668355 has 32 divisors (see below), whose sum is σ = 438488064. Its totient is φ = 93960576.

The previous prime is 222668321. The next prime is 222668357. The reversal of 222668355 is 553866222.

It is not a de Polignac number, because 222668355 - 2⁸ = 222668099 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (222668357) 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 31 ways as a sum of consecutive naturals, for example, 80199 + ... + 82928.

It is an arithmetic number, because the mean of its divisors is an integer number (13702752).

Almost surely, 2^222668355 is an apocalyptic number.

222668355 is a deficient number, since it is larger than the sum of its proper divisors (215819709).

222668355 is a wasteful number, since it uses less digits than its factorization.

222668355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163155.

The product of its digits is 172800, while the sum is 39.

The square root of 222668355 is about 14922.0760955036. The cubic root of 222668355 is about 606.1119318561. Note that the first 3 decimals are identical.

The spelling of 222668355 in words is "two hundred twenty-two million, six hundred sixty-eight thousand, three hundred fifty-five".