12234781135570 has 48 divisors (see below), whose sum is σ = 25621033114368. Its totient is φ = 4194307323360.

The previous prime is 12234781135523. The next prime is 12234781135571. The reversal of 12234781135570 is 7553118743221.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (12234781135571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2934265 + ... + 5751475.

It is an arithmetic number, because the mean of its divisors is an integer number (533771523216).

Almost surely, 2^{12234781135570} is an apocalyptic number.

12234781135570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12234781135570 is an abundant number, since it is smaller than the sum of its proper divisors (13386251978798).

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

12234781135570 is a wasteful number, since it uses less digits than its factorization.

12234781135570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826095 (or 2826088 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

Adding to 12234781135570 its reverse (7553118743221), we get a palindrome (19787899878791).

The spelling of 12234781135570 in words is "twelve trillion, two hundred thirty-four billion, seven hundred eighty-one million, one hundred thirty-five thousand, five hundred seventy".