22262722 has 4 divisors (see below), whose sum is σ = 33394086. Its totient is φ = 11131360.

The previous prime is 22262717. The next prime is 22262731. The reversal of 22262722 is 22726222.

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., 13388281 + 8874441 = 3659^2 + 2979^2 .

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 as a sum of consecutive naturals, namely, 5565679 + ... + 5565682.

Almost surely, 2^22262722 is an apocalyptic number.

22262722 is a deficient number, since it is larger than the sum of its proper divisors (11131364).

22262722 is a wasteful number, since it uses less digits than its factorization.

22262722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11131363.

The product of its digits is 2688, while the sum is 25.

The square root of 22262722 is about 4718.3389026224. The cubic root of 22262722 is about 281.3149122929.

Adding to 22262722 its reverse (22726222), we get a palindrome (44988944).

It can be divided in two parts, 2226272 and 2, that multiplied together give a palindrome (4452544).

The spelling of 22262722 in words is "twenty-two million, two hundred sixty-two thousand, seven hundred twenty-two".