20441200120 has 128 divisors (see below), whose sum is σ = 51372895680. Its totient is φ = 7257600000.

The previous prime is 20441200051. The next prime is 20441200177. The reversal of 20441200120 is 2100214402.

It is a junction number, because it is equal to n+sod(n) for n = 20441200094 and 20441200103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3240970 + ... + 3247270.

Almost surely, 2^20441200120 is an apocalyptic number.

20441200120 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 20441200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25686447840).

20441200120 is an abundant number, since it is smaller than the sum of its proper divisors (30931695560).

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

20441200120 is a wasteful number, since it uses less digits than its factorization.

20441200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497 (or 6493 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20441200120 its reverse (2100214402), we get a palindrome (22541414522).

The spelling of 20441200120 in words is "twenty billion, four hundred forty-one million, two hundred thousand, one hundred twenty".