222288449378 has 6 divisors (see below), whose sum is σ = 333433674219. Its totient is φ = 111143891306.

The previous prime is 222288449359. The next prime is 222288449407. The reversal of 222288449378 is 873944882222.

It is a happy number.

222288449378 is digitally balanced in base 2, 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 only one way, i.e., 111144224689 + 111144224689 = 333383^2 + 333383^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333383.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 500075 + ... + 833457.

Almost surely, 2^222288449378 is an apocalyptic number.

222288449378 is a deficient number, since it is larger than the sum of its proper divisors (111145224841).

222288449378 is an frugal number, since it uses more digits than its factorization.

222288449378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666768 (or 333385 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 59.

The spelling of 222288449378 in words is "two hundred twenty-two billion, two hundred eighty-eight million, four hundred forty-nine thousand, three hundred seventy-eight".