222320546 has 12 divisors (see below), whose sum is σ = 387926838. Its totient is φ = 95280192.

The previous prime is 222320537. The next prime is 222320557. The reversal of 222320546 is 645023222.

It can be written as a sum of positive squares in only one way, i.e., 123099025 + 99221521 = 11095^2 + 9961^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1134191 + ... + 1134386.

Almost surely, 2^222320546 is an apocalyptic number.

222320546 is a deficient number, since it is larger than the sum of its proper divisors (165606292).

222320546 is a wasteful number, since it uses less digits than its factorization.

222320546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268593 (or 2268586 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 222320546 is about 14910.4173650505. The cubic root of 222320546 is about 605.7961841860.

Adding to 222320546 its reverse (645023222), we get a palindrome (867343768).

The spelling of 222320546 in words is "two hundred twenty-two million, three hundred twenty thousand, five hundred forty-six".