1144213121444 has 6 divisors (see below), whose sum is σ = 2002372962534. Its totient is φ = 572106560720.

The previous prime is 1144213121437. The next prime is 1144213121537. The reversal of 1144213121444 is 4441213124411.

It can be written as a sum of positive squares in only one way, i.e., 624210604900 + 520002516544 = 790070^2 + 721112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1144213121444.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 143026640177 + ... + 143026640184.

It is an arithmetic number, because the mean of its divisors is an integer number (333728827089).

Almost surely, 2^{1144213121444} is an apocalyptic number.

It is an amenable number.

1144213121444 is a deficient number, since it is larger than the sum of its proper divisors (858159841090).

1144213121444 is a wasteful number, since it uses less digits than its factorization.

1144213121444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286053280365 (or 286053280363 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

Adding to 1144213121444 its reverse (4441213124411), we get a palindrome (5585426245855).

The spelling of 1144213121444 in words is "one trillion, one hundred forty-four billion, two hundred thirteen million, one hundred twenty-one thousand, four hundred forty-four".