20224120 has 32 divisors (see below), whose sum is σ = 52005600. Its totient is φ = 6933888.

The previous prime is 20224117. The next prime is 20224129. The reversal of 20224120 is 2142202.

It is a self number, because there is not a number n which added to its sum of digits gives 20224120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35835 + ... + 36394.

It is an arithmetic number, because the mean of its divisors is an integer number (1625175).

Almost surely, 2^20224120 is an apocalyptic number.

20224120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20224120 is an abundant number, since it is smaller than the sum of its proper divisors (31781480).

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

20224120 is a wasteful number, since it uses less digits than its factorization.

20224120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72247 (or 72243 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20224120 is about 4497.1235250991. The cubic root of 20224120 is about 272.4519231740.

Adding to 20224120 its reverse (2142202), we get a palindrome (22366322).

The spelling of 20224120 in words is "twenty million, two hundred twenty-four thousand, one hundred twenty".