12440271124250 has 32 divisors (see below), whose sum is σ = 23299209919440. Its totient is φ = 4973753241600.

The previous prime is 12440271124243. The next prime is 12440271124277. The reversal of 12440271124250 is 5242117204421.

It can be written as a sum of positive squares in 8 ways, for example, as 1659168119569 + 10781103004681 = 1288087^2 + 3283459^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12440271124250.

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, 11246735 + ... + 12303234.

Almost surely, 2^{12440271124250} is an apocalyptic number.

12440271124250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12440271124250 is a deficient number, since it is larger than the sum of its proper divisors (10858938795190).

12440271124250 is a wasteful number, since it uses less digits than its factorization.

12440271124250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23552099 (or 23552089 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 35.

Adding to 12440271124250 its reverse (5242117204421), we get a palindrome (17682388328671).

The spelling of 12440271124250 in words is "twelve trillion, four hundred forty billion, two hundred seventy-one million, one hundred twenty-four thousand, two hundred fifty".