1224031155044 has 6 divisors (see below), whose sum is σ = 2142054521334. Its totient is φ = 612015577520.

The previous prime is 1224031155043. The next prime is 1224031155059. The reversal of 1224031155044 is 4405511304221.

It can be written as a sum of positive squares in only one way, i.e., 1189761740644 + 34269414400 = 1090762^2 + 185120^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1224031155044.

It is not an unprimeable number, because it can be changed into a prime (1224031155043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153003894377 + ... + 153003894384.

It is an arithmetic number, because the mean of its divisors is an integer number (357009086889).

Almost surely, 2^{1224031155044} is an apocalyptic number.

It is an amenable number.

1224031155044 is a deficient number, since it is larger than the sum of its proper divisors (918023366290).

1224031155044 is a wasteful number, since it uses less digits than its factorization.

1224031155044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306007788765 (or 306007788763 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 1224031155044 its reverse (4405511304221), we get a palindrome (5629542459265).

The spelling of 1224031155044 in words is "one trillion, two hundred twenty-four billion, thirty-one million, one hundred fifty-five thousand, forty-four".