11201110022021 has 4 divisors (see below), whose sum is σ = 11201118211500. Its totient is φ = 11201101832544.

The previous prime is 11201110022009. The next prime is 11201110022051. The reversal of 11201110022021 is 12022001110211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5349737702500 + 5851372319521 = 2312950^2 + 2418961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201110022021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201110021987 and 11201110022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201110022051) 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, 1491416 + ... + 4962513.

It is an arithmetic number, because the mean of its divisors is an integer number (2800279552875).

Almost surely, 2^{11201110022021} is an apocalyptic number.

It is an amenable number.

11201110022021 is a deficient number, since it is larger than the sum of its proper divisors (8189479).

11201110022021 is an equidigital number, since it uses as much as digits as its factorization.

11201110022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189478.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11201110022021 its reverse (12022001110211), we get a palindrome (23223111132232).

The spelling of 11201110022021 in words is "eleven trillion, two hundred one billion, one hundred ten million, twenty-two thousand, twenty-one".