22443225225220 has 96 divisors (see below), whose sum is σ = 48290839511040. Its totient is φ = 8759871308160.

The previous prime is 22443225225199. The next prime is 22443225225221. The reversal of 22443225225220 is 2252252234422.

It is a self number, because there is not a number n which added to its sum of digits gives 22443225225220.

It is not an unprimeable number, because it can be changed into a prime (22443225225221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37480375 + ... + 38074465.

It is an arithmetic number, because the mean of its divisors is an integer number (503029578240).

Almost surely, 2^{22443225225220} is an apocalyptic number.

22443225225220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22443225225220 is an abundant number, since it is smaller than the sum of its proper divisors (25847614285820).

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

22443225225220 is a wasteful number, since it uses less digits than its factorization.

22443225225220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594473 (or 594471 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 37.

Adding to 22443225225220 its reverse (2252252234422), we get a palindrome (24695477459642).

The spelling of 22443225225220 in words is "twenty-two trillion, four hundred forty-three billion, two hundred twenty-five million, two hundred twenty-five thousand, two hundred twenty".