1101201002221 has 2 divisors, whose sum is σ = 1101201002222. Its totient is φ = 1101201002220.

The previous prime is 1101201002207. The next prime is 1101201002227. The reversal of 1101201002221 is 1222001021011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554259404196 + 546941598025 = 744486^2 + 739555^2 .

It is an emirp because it is prime and its reverse (1222001021011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101201002221 - 2¹⁷ = 1101200871149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101201002227) 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, 550600501110 + 550600501111.

It is an arithmetic number, because the mean of its divisors is an integer number (550600501111).

Almost surely, 2^{1101201002221} is an apocalyptic number.

It is an amenable number.

1101201002221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101201002221 is an equidigital number, since it uses as much as digits as its factorization.

1101201002221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1101201002221 its reverse (1222001021011), we get a palindrome (2323202023232).

The spelling of 1101201002221 in words is "one trillion, one hundred one billion, two hundred one million, two thousand, two hundred twenty-one".