22032222 has 8 divisors (see below), whose sum is σ = 44064456. Its totient is φ = 7344072.

The previous prime is 22032169. The next prime is 22032233. The reversal of 22032222 is 22223022.

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

22032222 is an admirable number.

It is a congruent number.

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, 1836013 + ... + 1836024.

It is an arithmetic number, because the mean of its divisors is an integer number (5508057).

Almost surely, 2^22032222 is an apocalyptic number.

22032222 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.

22032222 is a wasteful number, since it uses less digits than its factorization.

22032222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672042.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22032222 is about 4693.8493797735. The cubic root of 22032222 is about 280.3406652895.

Adding to 22032222 its reverse (22223022), we get a palindrome (44255244).

The spelling of 22032222 in words is "twenty-two million, thirty-two thousand, two hundred twenty-two".