222230522 has 4 divisors (see below), whose sum is σ = 333345786. Its totient is φ = 111115260.

The previous prime is 222230513. The next prime is 222230527. The reversal of 222230522 is 225032222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225032222 = 2 ⋅112516111.

It can be written as a sum of positive squares in only one way, i.e., 147598201 + 74632321 = 12149^2 + 8639^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222230494 and 222230503.

It is not an unprimeable number, because it can be changed into a prime (222230527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55557629 + ... + 55557632.

Almost surely, 2^222230522 is an apocalyptic number.

222230522 is a deficient number, since it is larger than the sum of its proper divisors (111115264).

222230522 is a wasteful number, since it uses less digits than its factorization.

222230522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111115263.

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

The square root of 222230522 is about 14907.3982304090. The cubic root of 222230522 is about 605.7144050321.

Adding to 222230522 its reverse (225032222), we get a palindrome (447262744).

The spelling of 222230522 in words is "two hundred twenty-two million, two hundred thirty thousand, five hundred twenty-two".