1141221120444 has 72 divisors (see below), whose sum is σ = 2891166642000. Its totient is φ = 379561734144.

The previous prime is 1141221120439. The next prime is 1141221120467. The reversal of 1141221120444 is 4440211221411.

1141221120444 is a `hidden beast` number, since 1 + 1 + 4 + 1 + 2 + 211 + 2 + 0 + 444 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119632627 + ... + 119642165.

It is an arithmetic number, because the mean of its divisors is an integer number (40155092250).

Almost surely, 2^{1141221120444} is an apocalyptic number.

It is an amenable number.

1141221120444 is an abundant number, since it is smaller than the sum of its proper divisors (1749945521556).

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

1141221120444 is a wasteful number, since it uses less digits than its factorization.

1141221120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16587 (or 16582 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 1141221120444 its reverse (4440211221411), we get a palindrome (5581432341855).

The spelling of 1141221120444 in words is "one trillion, one hundred forty-one billion, two hundred twenty-one million, one hundred twenty thousand, four hundred forty-four".