12241143420 has 384 divisors, whose sum is σ = 40967700480. Its totient is φ = 2697646080.

The previous prime is 12241143419. The next prime is 12241143449. The reversal of 12241143420 is 2434114221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 73300177 + ... + 73300343.

It is an arithmetic number, because the mean of its divisors is an integer number (106686720).

Almost surely, 2^12241143420 is an apocalyptic number.

12241143420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12241143420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20483850240).

12241143420 is an abundant number, since it is smaller than the sum of its proper divisors (28726557060).

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

12241143420 is a wasteful number, since it uses less digits than its factorization.

12241143420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 391 counting only the distinct ones).

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

Adding to 12241143420 its reverse (2434114221), we get a palindrome (14675257641).

The spelling of 12241143420 in words is "twelve billion, two hundred forty-one million, one hundred forty-three thousand, four hundred twenty".