1140444411221 has 2 divisors, whose sum is σ = 1140444411222. Its totient is φ = 1140444411220.

The previous prime is 1140444411199. The next prime is 1140444411241. The reversal of 1140444411221 is 1221144440411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 851015475025 + 289428936196 = 922505^2 + 537986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140444411221 - 2⁶ = 1140444411157 is a prime.

It is a super-2 number, since 2×1140444411221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140444411241) by changing a digit.

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 as a sum of consecutive naturals, namely, 570222205610 + 570222205611.

It is an arithmetic number, because the mean of its divisors is an integer number (570222205611).

Almost surely, 2^{1140444411221} is an apocalyptic number.

It is an amenable number.

1140444411221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140444411221 is an equidigital number, since it uses as much as digits as its factorization.

1140444411221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 29.

Adding to 1140444411221 its reverse (1221144440411), we get a palindrome (2361588851632).

The spelling of 1140444411221 in words is "one trillion, one hundred forty billion, four hundred forty-four million, four hundred eleven thousand, two hundred twenty-one".