22120044 has 48 divisors (see below), whose sum is σ = 53088000. Its totient is φ = 7166016.

The previous prime is 22120031. The next prime is 22120057. The reversal of 22120044 is 44002122.

It is an interprime number because it is at equal distance from previous prime (22120031) and next prime (22120057).

It is a congruent number.

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, 111057 + ... + 111255.

It is an arithmetic number, because the mean of its divisors is an integer number (1106000).

Almost surely, 2^22120044 is an apocalyptic number.

It is an amenable number.

22120044 is an abundant number, since it is smaller than the sum of its proper divisors (30967956).

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

22120044 is a wasteful number, since it uses less digits than its factorization.

22120044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22120044 is about 4703.1950841954. The cubic root of 22120044 is about 280.7126573911.

Adding to 22120044 its reverse (44002122), we get a palindrome (66122166).

The spelling of 22120044 in words is "twenty-two million, one hundred twenty thousand, forty-four".