1244121332444 has 12 divisors (see below), whose sum is σ = 2186975617344. Its totient is φ = 619271156064.

The previous prime is 1244121332431. The next prime is 1244121332459. The reversal of 1244121332444 is 4442331214421.

It is a congruent number.

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, 697376537 + ... + 697378320.

It is an arithmetic number, because the mean of its divisors is an integer number (182247968112).

Almost surely, 2^{1244121332444} is an apocalyptic number.

It is an amenable number.

1244121332444 is a deficient number, since it is larger than the sum of its proper divisors (942854284900).

1244121332444 is a wasteful number, since it uses less digits than its factorization.

1244121332444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394755084 (or 1394755082 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

Adding to 1244121332444 its reverse (4442331214421), we get a palindrome (5686452546865).

The spelling of 1244121332444 in words is "one trillion, two hundred forty-four billion, one hundred twenty-one million, three hundred thirty-two thousand, four hundred forty-four".