22444213120 has 128 divisors (see below), whose sum is σ = 62326814400. Its totient is φ = 7568916480.

The previous prime is 22444213039. The next prime is 22444213157. The reversal of 22444213120 is 2131244422.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232216 + ... + 314344.

Almost surely, 2^22444213120 is an apocalyptic number.

22444213120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22444213120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31163407200).

22444213120 is an abundant number, since it is smaller than the sum of its proper divisors (39882601280).

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

22444213120 is an equidigital number, since it uses as much as digits as its factorization.

22444213120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82216 (or 82204 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 22444213120 its reverse (2131244422), we get a palindrome (24575457542).

The spelling of 22444213120 in words is "twenty-two billion, four hundred forty-four million, two hundred thirteen thousand, one hundred twenty".