22042226 has 4 divisors (see below), whose sum is σ = 33063342. Its totient is φ = 11021112.

The previous prime is 22042219. The next prime is 22042231. The reversal of 22042226 is 62224022.

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., 21613201 + 429025 = 4649^2 + 655^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22042198 and 22042207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510555 + ... + 5510558.

Almost surely, 2^22042226 is an apocalyptic number.

22042226 is a deficient number, since it is larger than the sum of its proper divisors (11021116).

22042226 is a wasteful number, since it uses less digits than its factorization.

22042226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11021115.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 22042226 is about 4694.9149087071. The cubic root of 22042226 is about 280.3830895722.

Adding to 22042226 its reverse (62224022), we get a palindrome (84266248).

The spelling of 22042226 in words is "twenty-two million, forty-two thousand, two hundred twenty-six".