22120452504 has 96 divisors (see below), whose sum is σ = 63280588800. Its totient is φ = 6969654720.

The previous prime is 22120452491. The next prime is 22120452551. The reversal of 22120452504 is 40525402122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19264 + ... + 211215.

It is an arithmetic number, because the mean of its divisors is an integer number (659172800).

Almost surely, 2^22120452504 is an apocalyptic number.

22120452504 is a gapful number since it is divisible by the number (24) 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 22120452504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31640294400).

22120452504 is an abundant number, since it is smaller than the sum of its proper divisors (41160136296).

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

22120452504 is a wasteful number, since it uses less digits than its factorization.

22120452504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230565 (or 230558 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 22120452504 its reverse (40525402122), we get a palindrome (62645854626).

The spelling of 22120452504 in words is "twenty-two billion, one hundred twenty million, four hundred fifty-two thousand, five hundred four".