22225705 has 16 divisors (see below), whose sum is σ = 28030464. Its totient is φ = 16885440.

The previous prime is 22225699. The next prime is 22225717. The reversal of 22225705 is 50752222.

It is not a de Polignac number, because 22225705 - 2¹⁹ = 21701417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22225705.

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 in 15 ways as a sum of consecutive naturals, for example, 17440 + ... + 18670.

It is an arithmetic number, because the mean of its divisors is an integer number (1751904).

Almost surely, 2^22225705 is an apocalyptic number.

It is an amenable number.

22225705 is a deficient number, since it is larger than the sum of its proper divisors (5804759).

22225705 is a wasteful number, since it uses less digits than its factorization.

22225705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 22225705 is about 4714.4145978053. The cubic root of 22225705 is about 281.1589084427.

Adding to 22225705 its reverse (50752222), we get a palindrome (72977927).

The spelling of 22225705 in words is "twenty-two million, two hundred twenty-five thousand, seven hundred five".