222030205 has 4 divisors (see below), whose sum is σ = 266436252. Its totient is φ = 177624160.

The previous prime is 222030203. The next prime is 222030223. The reversal of 222030205 is 502030222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 158206084 + 63824121 = 12578^2 + 7989^2 .

It is not a de Polignac number, because 222030205 - 2¹ = 222030203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222030203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22203016 + ... + 22203025.

It is an arithmetic number, because the mean of its divisors is an integer number (66609063).

Almost surely, 2^222030205 is an apocalyptic number.

It is an amenable number.

222030205 is a deficient number, since it is larger than the sum of its proper divisors (44406047).

222030205 is an equidigital number, since it uses as much as digits as its factorization.

222030205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44406046.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 222030205 is about 14900.6780047084. The cubic root of 222030205 is about 605.5323547801.

Adding to 222030205 its reverse (502030222), we get a palindrome (724060427).

The spelling of 222030205 in words is "two hundred twenty-two million, thirty thousand, two hundred five".