1143043224221 has 2 divisors, whose sum is σ = 1143043224222. Its totient is φ = 1143043224220.

The previous prime is 1143043224217. The next prime is 1143043224269. The reversal of 1143043224221 is 1224223403411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1112107339225 + 30935884996 = 1054565^2 + 175886^2 .

It is an emirp because it is prime and its reverse (1224223403411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143043224221 - 2² = 1143043224217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143043244221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571521612110 + 571521612111.

It is an arithmetic number, because the mean of its divisors is an integer number (571521612111).

Almost surely, 2^{1143043224221} is an apocalyptic number.

It is an amenable number.

1143043224221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143043224221 is an equidigital number, since it uses as much as digits as its factorization.

1143043224221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1143043224221 its reverse (1224223403411), we get a palindrome (2367266627632).

The spelling of 1143043224221 in words is "one trillion, one hundred forty-three billion, forty-three million, two hundred twenty-four thousand, two hundred twenty-one".