12443415220 has 24 divisors (see below), whose sum is σ = 26143455744. Its totient is φ = 4975026336.

The previous prime is 12443415209. The next prime is 12443415227. The reversal of 12443415220 is 2251434421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443415227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102304 + ... + 188023.

It is an arithmetic number, because the mean of its divisors is an integer number (1089310656).

Almost surely, 2^12443415220 is an apocalyptic number.

12443415220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12443415220 is an abundant number, since it is smaller than the sum of its proper divisors (13700040524).

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

12443415220 is a wasteful number, since it uses less digits than its factorization.

12443415220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292479 (or 292477 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 12443415220 its reverse (2251434421), we get a palindrome (14694849641).

The spelling of 12443415220 in words is "twelve billion, four hundred forty-three million, four hundred fifteen thousand, two hundred twenty".