22005222 has 8 divisors (see below), whose sum is σ = 44010456. Its totient is φ = 7335072.

The previous prime is 22005199. The next prime is 22005241. The reversal of 22005222 is 22250022.

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

22005222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833763 + ... + 1833774.

It is an arithmetic number, because the mean of its divisors is an integer number (5501307).

Almost surely, 2^22005222 is an apocalyptic number.

22005222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22005222 is a wasteful number, since it uses less digits than its factorization.

22005222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667542.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 22005222 is about 4690.9723938646. The cubic root of 22005222 is about 280.2261013865.

Adding to 22005222 its reverse (22250022), we get a palindrome (44255244).

It can be divided in two parts, 2200522 and 2, that multiplied together give a palindrome (4401044).

The spelling of 22005222 in words is "twenty-two million, five thousand, two hundred twenty-two".