222533530 has 16 divisors (see below), whose sum is σ = 414373320. Its totient is φ = 85943872.

The previous prime is 222533513. The next prime is 222533537. The reversal of 222533530 is 35335222.

It can be written as a sum of positive squares in 4 ways, for example, as 219010401 + 3523129 = 14799^2 + 1877^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222533495 and 222533504.

It is not an unprimeable number, because it can be changed into a prime (222533537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383389 + ... + 383968.

Almost surely, 2^222533530 is an apocalyptic number.

222533530 is a deficient number, since it is larger than the sum of its proper divisors (191839790).

222533530 is a wasteful number, since it uses less digits than its factorization.

222533530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767393.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 222533530 is about 14917.5577759900. The cubic root of 222533530 is about 605.9895741906.

Adding to 222533530 its reverse (35335222), we get a palindrome (257868752).

The spelling of 222533530 in words is "two hundred twenty-two million, five hundred thirty-three thousand, five hundred thirty".