22245532224520 has 64 divisors (see below), whose sum is σ = 56976699162240. Its totient is φ = 7737576422400.

The previous prime is 22245532224499. The next prime is 22245532224521. The reversal of 22245532224520 is 2542223554222.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (22245532224521) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1099077441 + ... + 1099097680.

It is an arithmetic number, because the mean of its divisors is an integer number (890260924410).

Almost surely, 2^{22245532224520} is an apocalyptic number.

22245532224520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22245532224520 is an abundant number, since it is smaller than the sum of its proper divisors (34731166937720).

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

22245532224520 is a wasteful number, since it uses less digits than its factorization.

22245532224520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198175166 (or 2198175162 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 40.

Adding to 22245532224520 its reverse (2542223554222), we get a palindrome (24787755778742).

The spelling of 22245532224520 in words is "twenty-two trillion, two hundred forty-five billion, five hundred thirty-two million, two hundred twenty-four thousand, five hundred twenty".