11202220121201 has 4 divisors (see below), whose sum is σ = 11208610436772. Its totient is φ = 11195829805632.

The previous prime is 11202220121189. The next prime is 11202220121293. The reversal of 11202220121201 is 10212102220211.

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 6325984552801 + 4876235568400 = 2515151^2 + 2208220^2 .

It is a cyclic number.

It is not a de Polignac number, because 11202220121201 - 2¹⁸ = 11202219859057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11202220121201.

It is not an unprimeable number, because it can be changed into a prime (11202220121401) 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, 3195155156 + ... + 3195158661.

It is an arithmetic number, because the mean of its divisors is an integer number (2802152609193).

Almost surely, 2^{11202220121201} is an apocalyptic number.

It is an amenable number.

11202220121201 is a deficient number, since it is larger than the sum of its proper divisors (6390315571).

11202220121201 is an equidigital number, since it uses as much as digits as its factorization.

11202220121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390315570.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11202220121201 its reverse (10212102220211), we get a palindrome (21414322341412).

The spelling of 11202220121201 in words is "eleven trillion, two hundred two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred one".