11013221310209 has 2 divisors, whose sum is σ = 11013221310210. Its totient is φ = 11013221310208.

The previous prime is 11013221310109. The next prime is 11013221310241. The reversal of 11013221310209 is 90201312231011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8472337489984 + 2540883820225 = 2910728^2 + 1594015^2 .

It is a cyclic number.

It is not a de Polignac number, because 11013221310209 - 2⁴⁰ = 9913709682433 is a prime.

It is not a weakly prime, because it can be changed into another prime (11013221310109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506610655104 + 5506610655105.

It is an arithmetic number, because the mean of its divisors is an integer number (5506610655105).

Almost surely, 2^{11013221310209} is an apocalyptic number.

It is an amenable number.

11013221310209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013221310209 is an equidigital number, since it uses as much as digits as its factorization.

11013221310209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 11013221310209 in words is "eleven trillion, thirteen billion, two hundred twenty-one million, three hundred ten thousand, two hundred nine".