222006530 has 16 divisors (see below), whose sum is σ = 400150584. Its totient is φ = 88682880.

The previous prime is 222006503. The next prime is 222006581. The reversal of 222006530 is 35600222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49688401 + 172318129 = 7049^2 + 13127^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6977 + ... + 22196.

Almost surely, 2^222006530 is an apocalyptic number.

222006530 is a deficient number, since it is larger than the sum of its proper divisors (178144054).

222006530 is a wasteful number, since it uses less digits than its factorization.

222006530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29941.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 222006530 is about 14899.8835565920. The cubic root of 222006530 is about 605.5108314502.

Adding to 222006530 its reverse (35600222), we get a palindrome (257606752).

The spelling of 222006530 in words is "two hundred twenty-two million, six thousand, five hundred thirty".