22221553354532 has 36 divisors (see below), whose sum is σ = 45379436371164. Its totient is φ = 9493480180800.

The previous prime is 22221553354531. The next prime is 22221553354577. The reversal of 22221553354532 is 23545335512222.

It can be written as a sum of positive squares in 2 ways, for example, as 8987848104676 + 13233705249856 = 2997974^2 + 3637816^2 .

It is not an unprimeable number, because it can be changed into a prime (22221553354531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178763219 + ... + 178887482.

It is an arithmetic number, because the mean of its divisors is an integer number (1260539899199).

Almost surely, 2^{22221553354532} is an apocalyptic number.

It is an amenable number.

22221553354532 is an abundant number, since it is smaller than the sum of its proper divisors (23157883016632).

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

22221553354532 is a wasteful number, since it uses less digits than its factorization.

22221553354532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357651036 (or 357651027 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 44.

Adding to 22221553354532 its reverse (23545335512222), we get a palindrome (45766888866754).

The spelling of 22221553354532 in words is "twenty-two trillion, two hundred twenty-one billion, five hundred fifty-three million, three hundred fifty-four thousand, five hundred thirty-two".