11221130201 has 4 divisors (see below), whose sum is σ = 11223282192. Its totient is φ = 11218978212.

The previous prime is 11221130191. The next prime is 11221130213. The reversal of 11221130201 is 10203112211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221130201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11221130281) 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, 1068155 + ... + 1078608.

It is an arithmetic number, because the mean of its divisors is an integer number (2805820548).

Almost surely, 2^11221130201 is an apocalyptic number.

It is an amenable number.

11221130201 is a deficient number, since it is larger than the sum of its proper divisors (2151991).

11221130201 is an equidigital number, since it uses as much as digits as its factorization.

11221130201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151990.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11221130201 its reverse (10203112211), we get a palindrome (21424242412).

The spelling of 11221130201 in words is "eleven billion, two hundred twenty-one million, one hundred thirty thousand, two hundred one".