12441221340 has 48 divisors (see below), whose sum is σ = 34869381120. Its totient is φ = 3314424640.

The previous prime is 12441221291. The next prime is 12441221411. The reversal of 12441221340 is 4312214421.

It is a self number, because there is not a number n which added to its sum of digits gives 12441221340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38700 + ... + 162419.

It is an arithmetic number, because the mean of its divisors is an integer number (726445440).

Almost surely, 2^12441221340 is an apocalyptic number.

12441221340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12441221340 is an abundant number, since it is smaller than the sum of its proper divisors (22428159780).

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

12441221340 is a wasteful number, since it uses less digits than its factorization.

12441221340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202162 (or 202160 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12441221340 its reverse (4312214421), we get a palindrome (16753435761).

The spelling of 12441221340 in words is "twelve billion, four hundred forty-one million, two hundred twenty-one thousand, three hundred forty".