222446668 has 6 divisors (see below), whose sum is σ = 389281676. Its totient is φ = 111223332.

The previous prime is 222446663. The next prime is 222446677. The reversal of 222446668 is 866644222.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 222446668.

It is not an unprimeable number, because it can be changed into a prime (222446663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805830 + ... + 27805837.

Almost surely, 2^222446668 is an apocalyptic number.

It is an amenable number.

222446668 is a deficient number, since it is larger than the sum of its proper divisors (166835008).

222446668 is a wasteful number, since it uses less digits than its factorization.

222446668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55611671 (or 55611669 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The square root of 222446668 is about 14914.6460903368. The cubic root of 222446668 is about 605.9107181839.

The spelling of 222446668 in words is "two hundred twenty-two million, four hundred forty-six thousand, six hundred sixty-eight".