11201112010021 has 8 divisors (see below), whose sum is σ = 11241689537144. Its totient is φ = 11160535492800.

The previous prime is 11201112010019. The next prime is 11201112010027. The reversal of 11201112010021 is 12001021110211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2586593507521 + 8614518502500 = 1608289^2 + 2935050^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11201112010021 - 2¹ = 11201112010019 is a prime.

It is a super-2 number, since 2×11201112010021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201112009983 and 11201112010010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201112010027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27470191 + ... + 27874963.

It is an arithmetic number, because the mean of its divisors is an integer number (1405211192143).

Almost surely, 2^{11201112010021} is an apocalyptic number.

It is an amenable number.

11201112010021 is a deficient number, since it is larger than the sum of its proper divisors (40577527123).

11201112010021 is an equidigital number, since it uses as much as digits as its factorization.

11201112010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504951.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11201112010021 its reverse (12001021110211), we get a palindrome (23202133120232).

The spelling of 11201112010021 in words is "eleven trillion, two hundred one billion, one hundred twelve million, ten thousand, twenty-one".