1101221300209 has 2 divisors, whose sum is σ = 1101221300210. Its totient is φ = 1101221300208.

The previous prime is 1101221300159. The next prime is 1101221300239. The reversal of 1101221300209 is 9020031221011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1093363009600 + 7858290609 = 1045640^2 + 88647^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101221300209 - 2³⁵ = 1066861561841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101221300209.

It is not a weakly prime, because it can be changed into another prime (1101221300239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550610650104 + 550610650105.

It is an arithmetic number, because the mean of its divisors is an integer number (550610650105).

Almost surely, 2^{1101221300209} is an apocalyptic number.

It is an amenable number.

1101221300209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101221300209 is an equidigital number, since it uses as much as digits as its factorization.

1101221300209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1101221300209 in words is "one trillion, one hundred one billion, two hundred twenty-one million, three hundred thousand, two hundred nine".