12230142544 has 80 divisors (see below), whose sum is σ = 25093036800. Its totient is φ = 5763022848.

The previous prime is 12230142469. The next prime is 12230142557. The reversal of 12230142544 is 44524103221.

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, 8679312 + ... + 8680720.

It is an arithmetic number, because the mean of its divisors is an integer number (313662960).

Almost surely, 2^12230142544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12230142544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12546518400).

12230142544 is an abundant number, since it is smaller than the sum of its proper divisors (12862894256).

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

12230142544 is a wasteful number, since it uses less digits than its factorization.

12230142544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1766 counting only the distinct ones).

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

Adding to 12230142544 its reverse (44524103221), we get a palindrome (56754245765).

The spelling of 12230142544 in words is "twelve billion, two hundred thirty million, one hundred forty-two thousand, five hundred forty-four".