1221124303141 has 2 divisors, whose sum is σ = 1221124303142. Its totient is φ = 1221124303140.

The previous prime is 1221124303117. The next prime is 1221124303159. The reversal of 1221124303141 is 1413034211221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 746589314916 + 474534988225 = 864054^2 + 688865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1221124303141 - 2¹⁷ = 1221124172069 is a prime.

It is a super-2 number, since 2×1221124303141² (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 (1221128303141) by changing a digit.

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, 610562151570 + 610562151571.

It is an arithmetic number, because the mean of its divisors is an integer number (610562151571).

Almost surely, 2^{1221124303141} is an apocalyptic number.

It is an amenable number.

1221124303141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221124303141 is an equidigital number, since it uses as much as digits as its factorization.

1221124303141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1221124303141 its reverse (1413034211221), we get a palindrome (2634158514362).

The spelling of 1221124303141 in words is "one trillion, two hundred twenty-one billion, one hundred twenty-four million, three hundred three thousand, one hundred forty-one".