222346666 has 8 divisors (see below), whose sum is σ = 333594720. Its totient is φ = 111148428.

The previous prime is 222346661. The next prime is 222346667. The reversal of 222346666 is 666643222.

222346666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222346661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2115 + ... + 21193.

It is an arithmetic number, because the mean of its divisors is an integer number (41699340).

Almost surely, 2^222346666 is an apocalyptic number.

222346666 is a deficient number, since it is larger than the sum of its proper divisors (111248054).

222346666 is a wasteful number, since it uses less digits than its factorization.

222346666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24908.

The product of its digits is 124416, while the sum is 37.

The square root of 222346666 is about 14911.2932370066. The cubic root of 222346666 is about 605.8199078543.

Adding to 222346666 its reverse (666643222), we get a palindrome (888989888).

It can be divided in two parts, 22234 and 6666, that added together give a square (28900 = 170²).

The spelling of 222346666 in words is "two hundred twenty-two million, three hundred forty-six thousand, six hundred sixty-six".