22532405220 has 144 divisors (see below), whose sum is σ = 74643109632. Its totient is φ = 5468279040.

The previous prime is 22532405177. The next prime is 22532405237. The reversal of 22532405220 is 2250423522.

22532405220 is a `hidden beast` number, since 2 + 2 + 5 + 32 + 405 + 220 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98329 + ... + 233951.

It is an arithmetic number, because the mean of its divisors is an integer number (518354928).

Almost surely, 2^22532405220 is an apocalyptic number.

22532405220 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 22532405220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37321554816).

22532405220 is an abundant number, since it is smaller than the sum of its proper divisors (52110704412).

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

22532405220 is a wasteful number, since it uses less digits than its factorization.

22532405220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135722 (or 135717 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 22532405220 its reverse (2250423522), we get a palindrome (24782828742).

The spelling of 22532405220 in words is "twenty-two billion, five hundred thirty-two million, four hundred five thousand, two hundred twenty".