11201121201 has 4 divisors (see below), whose sum is σ = 14934828272. Its totient is φ = 7467414132.

The previous prime is 11201121193. The next prime is 11201121203. The reversal of 11201121201 is 10212110211.

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 not a de Polignac number, because 11201121201 - 2³ = 11201121193 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 (11201121203) 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, 1866853531 + ... + 1866853536.

It is an arithmetic number, because the mean of its divisors is an integer number (3733707068).

Almost surely, 2^11201121201 is an apocalyptic number.

It is an amenable number.

11201121201 is a deficient number, since it is larger than the sum of its proper divisors (3733707071).

11201121201 is an equidigital number, since it uses as much as digits as its factorization.

11201121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733707070.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11201121201 its reverse (10212110211), we get a palindrome (21413231412).

The spelling of 11201121201 in words is "eleven billion, two hundred one million, one hundred twenty-one thousand, two hundred one".