22227520 has 56 divisors (see below), whose sum is σ = 60496704. Its totient is φ = 7620096.

The previous prime is 22227493. The next prime is 22227523. The reversal of 22227520 is 2572222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 22227491 and 22227500.

It is not an unprimeable number, because it can be changed into a prime (22227523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2722 + ... + 7201.

Almost surely, 2^22227520 is an apocalyptic number.

22227520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22227520 is an abundant number, since it is smaller than the sum of its proper divisors (38269184).

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

22227520 is an equidigital number, since it uses as much as digits as its factorization.

22227520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9947 (or 9937 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 22227520 is about 4714.6070886130. The cubic root of 22227520 is about 281.1665615862.

Adding to 22227520 its reverse (2572222), we get a palindrome (24799742).

The spelling of 22227520 in words is "twenty-two million, two hundred twenty-seven thousand, five hundred twenty".