222211066 has 32 divisors (see below), whose sum is σ = 417444480. Its totient is φ = 86184000.

The previous prime is 222211037. The next prime is 222211081. The reversal of 222211066 is 660112222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32116 + ... + 38416.

It is an arithmetic number, because the mean of its divisors is an integer number (13045140).

Almost surely, 2^222211066 is an apocalyptic number.

222211066 is a deficient number, since it is larger than the sum of its proper divisors (195233414).

222211066 is a wasteful number, since it uses less digits than its factorization.

222211066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 222211066 is about 14906.7456542332. The cubic root of 222211066 is about 605.6967280072.

Adding to 222211066 its reverse (660112222), we get a palindrome (882323288).

The spelling of 222211066 in words is "two hundred twenty-two million, two hundred eleven thousand, sixty-six".