222222226 has 4 divisors (see below), whose sum is σ = 333333342. Its totient is φ = 111111112.

The previous prime is 222222193. The next prime is 222222227. The reversal of 222222226 is 622222222.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 221861025 + 361201 = 14895^2 + 601^2 .

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222222197 and 222222206.

It is not an unprimeable number, because it can be changed into a prime (222222227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555555 + ... + 55555558.

Almost surely, 2^222222226 is an apocalyptic number.

222222226 is a deficient number, since it is larger than the sum of its proper divisors (111111116).

222222226 is a wasteful number, since it uses less digits than its factorization.

222222226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111111115.

The product of its digits is 1536, while the sum is 22.

The square root of 222222226 is about 14907.1199767091. The cubic root of 222222226 is about 605.7068677097.

Adding to 222222226 its reverse (622222222), we get a palindrome (844444448).

The spelling of 222222226 in words is "two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-six".