11011211201201 has 4 divisors (see below), whose sum is σ = 11658929507172. Its totient is φ = 10363492895232.

The previous prime is 11011211201191. The next prime is 11011211201209. The reversal of 11011211201201 is 10210211211011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7887335233600 + 3123875967601 = 2808440^2 + 1767449^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011211201201 - 2¹⁰ = 11011211200177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011211201209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323859152960 + ... + 323859152993.

It is an arithmetic number, because the mean of its divisors is an integer number (2914732376793).

Almost surely, 2^{11011211201201} is an apocalyptic number.

It is an amenable number.

11011211201201 is a deficient number, since it is larger than the sum of its proper divisors (647718305971).

11011211201201 is an equidigital number, since it uses as much as digits as its factorization.

11011211201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647718305970.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11011211201201 its reverse (10210211211011), we get a palindrome (21221422412212).

The spelling of 11011211201201 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred one thousand, two hundred one".