7222226 has 8 divisors (see below), whose sum is σ = 11818224. Its totient is φ = 3282820.

The previous prime is 7222219. The next prime is 7222279. The reversal of 7222226 is 6222227.

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

It is an unprimeable number.

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, 164120 + ... + 164163.

It is an arithmetic number, because the mean of its divisors is an integer number (1477278).

Almost surely, 2^7222226 is an apocalyptic number.

7222226 is a deficient number, since it is larger than the sum of its proper divisors (4595998).

7222226 is a wasteful number, since it uses less digits than its factorization.

7222226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328296.

The product of its digits is 1344, while the sum is 23.

The square root of 7222226 is about 2687.4199522963. The cubic root of 7222226 is about 193.2963669579.

Subtracting from 7222226 its reverse (6222227), we obtain a palindrome (999999).

The spelling of 7222226 in words is "seven million, two hundred twenty-two thousand, two hundred twenty-six".