1244223312144 has 20 divisors (see below), whose sum is σ = 3214243556496. Its totient is φ = 414741104032.

The previous prime is 1244223312127. The next prime is 1244223312161. The reversal of 1244223312144 is 4412133224421.

It is an interprime number because it is at equal distance from previous prime (1244223312127) and next prime (1244223312161).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12960659454 + ... + 12960659549.

Almost surely, 2^{1244223312144} is an apocalyptic number.

It is an amenable number.

1244223312144 is an abundant number, since it is smaller than the sum of its proper divisors (1970020244352).

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

1244223312144 is a wasteful number, since it uses less digits than its factorization.

1244223312144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25921319014 (or 25921319008 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

Adding to 1244223312144 its reverse (4412133224421), we get a palindrome (5656356536565).

The spelling of 1244223312144 in words is "one trillion, two hundred forty-four billion, two hundred twenty-three million, three hundred twelve thousand, one hundred forty-four".