11201021101 has 4 divisors (see below), whose sum is σ = 11225531452. Its totient is φ = 11176510752.

The previous prime is 11201021093. The next prime is 11201021107. The reversal of 11201021101 is 10112010211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10112010211 = 1901 ⋅5319311.

It can be written as a sum of positive squares in 2 ways, for example, as 6861637225 + 4339383876 = 82835^2 + 65874^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201021101 - 2³ = 11201021093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201021107) 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, 12254490 + ... + 12255403.

It is an arithmetic number, because the mean of its divisors is an integer number (2806382863).

Almost surely, 2^11201021101 is an apocalyptic number.

It is an amenable number.

11201021101 is a deficient number, since it is larger than the sum of its proper divisors (24510351).

11201021101 is an equidigital number, since it uses as much as digits as its factorization.

11201021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24510350.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11201021101 its reverse (10112010211), we get a palindrome (21313031312).

The spelling of 11201021101 in words is "eleven billion, two hundred one million, twenty-one thousand, one hundred one".