222042530 has 8 divisors (see below), whose sum is σ = 399676572. Its totient is φ = 88817008.

The previous prime is 222042517. The next prime is 222042533. The reversal of 222042530 is 35240222.

222042530 is digitally balanced in base 3, 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 2 ways, for example, as 221801449 + 241081 = 14893^2 + 491^2 .

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

It is not an unprimeable number, because it can be changed into a prime (222042533) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11102117 + ... + 11102136.

Almost surely, 2^222042530 is an apocalyptic number.

222042530 is a deficient number, since it is larger than the sum of its proper divisors (177634042).

222042530 is a wasteful number, since it uses less digits than its factorization.

222042530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22204260.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 222042530 is about 14901.0915707541. The cubic root of 222042530 is about 605.5435590338.

Adding to 222042530 its reverse (35240222), we get a palindrome (257282752).

The spelling of 222042530 in words is "two hundred twenty-two million, forty-two thousand, five hundred thirty".