22210560 has 144 divisors (see below), whose sum is σ = 77297220. Its totient is φ = 5898240.

The previous prime is 22210511. The next prime is 22210579. The reversal of 22210560 is 6501222.

It can be written as a sum of positive squares in 2 ways, for example, as 22127616 + 82944 = 4704^2 + 288^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92040 + ... + 92280.

Almost surely, 2^22210560 is an apocalyptic number.

22210560 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 22210560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38648610).

22210560 is an abundant number, since it is smaller than the sum of its proper divisors (55086660).

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

22210560 is a wasteful number, since it uses less digits than its factorization.

22210560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 22210560 is about 4712.8080801153. The cubic root of 22210560 is about 281.0950316654.

Adding to 22210560 its reverse (6501222), we get a palindrome (28711782).

The spelling of 22210560 in words is "twenty-two million, two hundred ten thousand, five hundred sixty".