2002144220 has 12 divisors (see below), whose sum is σ = 4204502904. Its totient is φ = 800857680.

The previous prime is 2002144219. The next prime is 2002144241. The reversal of 2002144220 is 224412002.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 50053586 + ... + 50053625.

It is an arithmetic number, because the mean of its divisors is an integer number (350375242).

Almost surely, 2^2002144220 is an apocalyptic number.

2002144220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002144220 is an abundant number, since it is smaller than the sum of its proper divisors (2202358684).

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

2002144220 is a wasteful number, since it uses less digits than its factorization.

2002144220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100107220 (or 100107218 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2002144220 is about 44745.3262363791. The cubic root of 2002144220 is about 1260.3711470675.

Adding to 2002144220 its reverse (224412002), we get a palindrome (2226556222).

The spelling of 2002144220 in words is "two billion, two million, one hundred forty-four thousand, two hundred twenty".