22213560 has 64 divisors (see below), whose sum is σ = 70567200. Its totient is φ = 5574656.

The previous prime is 22213549. The next prime is 22213573. The reversal of 22213560 is 6531222.

It is a congruent number.

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, 3405 + ... + 7484.

Almost surely, 2^22213560 is an apocalyptic number.

22213560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22213560 is an abundant number, since it is smaller than the sum of its proper divisors (48353640).

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

22213560 is a wasteful number, since it uses less digits than its factorization.

22213560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10920 (or 10916 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22213560 is about 4713.1263509480. The cubic root of 22213560 is about 281.1076870139.

Adding to 22213560 its reverse (6531222), we get a palindrome (28744782).

The spelling of 22213560 in words is "twenty-two million, two hundred thirteen thousand, five hundred sixty".