22224401320 has 64 divisors (see below), whose sum is σ = 54645969600. Its totient is φ = 8067502080.

The previous prime is 22224401279. The next prime is 22224401387. The reversal of 22224401320 is 2310442222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22224401291 and 22224401300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210111 + ... + 297649.

It is an arithmetic number, because the mean of its divisors is an integer number (853843275).

Almost surely, 2^22224401320 is an apocalyptic number.

22224401320 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 22224401320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27322984800).

22224401320 is an abundant number, since it is smaller than the sum of its proper divisors (32421568280).

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

22224401320 is a wasteful number, since it uses less digits than its factorization.

22224401320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88138 (or 88134 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22224401320 its reverse (2310442222), we get a palindrome (24534843542).

The spelling of 22224401320 in words is "twenty-two billion, two hundred twenty-four million, four hundred one thousand, three hundred twenty".