12743221074 has 16 divisors (see below), whose sum is σ = 26827834080. Its totient is φ = 4024175040.

The previous prime is 12743221069. The next prime is 12743221081. The reversal of 12743221074 is 47012234721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55891207 + ... + 55891434.

It is an arithmetic number, because the mean of its divisors is an integer number (1676739630).

Almost surely, 2^12743221074 is an apocalyptic number.

12743221074 is an abundant number, since it is smaller than the sum of its proper divisors (14084613006).

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

12743221074 is a wasteful number, since it uses less digits than its factorization.

12743221074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111782665.

The product of its (nonzero) digits is 18816, while the sum is 33.

Adding to 12743221074 its reverse (47012234721), we get a palindrome (59755455795).

The spelling of 12743221074 in words is "twelve billion, seven hundred forty-three million, two hundred twenty-one thousand, seventy-four".