20560122 has 32 divisors (see below), whose sum is σ = 49844160. Its totient is φ = 6230160.

The previous prime is 20560121. The next prime is 20560129. The reversal of 20560122 is 22106502.

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

It is a junction number, because it is equal to n+sod(n) for n = 20560095 and 20560104.

It is not an unprimeable number, because it can be changed into a prime (20560121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16713 + ... + 17900.

It is an arithmetic number, because the mean of its divisors is an integer number (1557630).

Almost surely, 2^20560122 is an apocalyptic number.

20560122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20560122 is an abundant number, since it is smaller than the sum of its proper divisors (29284038).

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

20560122 is a wasteful number, since it uses less digits than its factorization.

20560122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34635 (or 34629 counting only the distinct ones).

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

The square root of 20560122 is about 4534.3270724552. The cubic root of 20560122 is about 273.9524754629.

Adding to 20560122 its reverse (22106502), we get a palindrome (42666624).

The spelling of 20560122 in words is "twenty million, five hundred sixty thousand, one hundred twenty-two".