12441552220 has 12 divisors (see below), whose sum is σ = 26127259704. Its totient is φ = 4976620880.

The previous prime is 12441552199. The next prime is 12441552287. The reversal of 12441552220 is 2225514421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311038786 + ... + 311038825.

It is an arithmetic number, because the mean of its divisors is an integer number (2177271642).

Almost surely, 2^12441552220 is an apocalyptic number.

12441552220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12441552220 is an abundant number, since it is smaller than the sum of its proper divisors (13685707484).

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

12441552220 is a wasteful number, since it uses less digits than its factorization.

12441552220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622077620 (or 622077618 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 12441552220 in words is "twelve billion, four hundred forty-one million, five hundred fifty-two thousand, two hundred twenty".