20144412220 has 12 divisors (see below), whose sum is σ = 42303265704. Its totient is φ = 8057764880.

The previous prime is 20144412217. The next prime is 20144412221. The reversal of 20144412220 is 2221444102.

It is a junction number, because it is equal to n+sod(n) for n = 20144412191 and 20144412200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144412221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503610286 + ... + 503610325.

It is an arithmetic number, because the mean of its divisors is an integer number (3525272142).

Almost surely, 2^20144412220 is an apocalyptic number.

20144412220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20144412220 is an abundant number, since it is smaller than the sum of its proper divisors (22158853484).

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

20144412220 is a wasteful number, since it uses less digits than its factorization.

20144412220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007220620 (or 1007220618 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20144412220 its reverse (2221444102), we get a palindrome (22365856322).

The spelling of 20144412220 in words is "twenty billion, one hundred forty-four million, four hundred twelve thousand, two hundred twenty".