11221322201 has 4 divisors (see below), whose sum is σ = 11222238900. Its totient is φ = 11220405504.

The previous prime is 11221322197. The next prime is 11221322251. The reversal of 11221322201 is 10222312211.

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 3124921801 + 8096400400 = 55901^2 + 89980^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221322201 - 2² = 11221322197 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 11221322201.

It is not an unprimeable number, because it can be changed into a prime (11221322251) 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, 439736 + ... + 464553.

It is an arithmetic number, because the mean of its divisors is an integer number (2805559725).

Almost surely, 2^11221322201 is an apocalyptic number.

It is an amenable number.

11221322201 is a deficient number, since it is larger than the sum of its proper divisors (916699).

11221322201 is an equidigital number, since it uses as much as digits as its factorization.

11221322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916698.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11221322201 its reverse (10222312211), we get a palindrome (21443634412).

The spelling of 11221322201 in words is "eleven billion, two hundred twenty-one million, three hundred twenty-two thousand, two hundred one".