1101201221243 has 2 divisors, whose sum is σ = 1101201221244. Its totient is φ = 1101201221242.

The previous prime is 1101201221207. The next prime is 1101201221269. The reversal of 1101201221243 is 3421221021011.

It is a strong prime.

It is an emirp because it is prime and its reverse (3421221021011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101201221243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101201221273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550600610621 + 550600610622.

It is an arithmetic number, because the mean of its divisors is an integer number (550600610622).

Almost surely, 2^{1101201221243} is an apocalyptic number.

1101201221243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101201221243 is an equidigital number, since it uses as much as digits as its factorization.

1101201221243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1101201221243 its reverse (3421221021011), we get a palindrome (4522422242254).

The spelling of 1101201221243 in words is "one trillion, one hundred one billion, two hundred one million, two hundred twenty-one thousand, two hundred forty-three".