1140244403221 has 32 divisors (see below), whose sum is σ = 1431531187200. Its totient is φ = 882316108800.

The previous prime is 1140244403209. The next prime is 1140244403303. The reversal of 1140244403221 is 1223044420411.

It is not a de Polignac number, because 1140244403221 - 2²⁵ = 1140210848789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140244403221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140244407221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7216750 + ... + 7373056.

It is an arithmetic number, because the mean of its divisors is an integer number (44735349600).

Almost surely, 2^{1140244403221} is an apocalyptic number.

1140244403221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1140244403221 is a deficient number, since it is larger than the sum of its proper divisors (291286783979).

1140244403221 is a wasteful number, since it uses less digits than its factorization.

1140244403221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156985.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1140244403221 its reverse (1223044420411), we get a palindrome (2363288823632).

The spelling of 1140244403221 in words is "one trillion, one hundred forty billion, two hundred forty-four million, four hundred three thousand, two hundred twenty-one".