11201210010021 has 32 divisors (see below), whose sum is σ = 15542515422720. Its totient is φ = 7169623078464.

The previous prime is 11201210009921. The next prime is 11201210010061. The reversal of 11201210010021 is 12001001210211.

It is not a de Polignac number, because 11201210010021 - 2¹⁰ = 11201210008997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11201210009979 and 11201210010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201210010061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110560030 + ... + 110661296.

It is an arithmetic number, because the mean of its divisors is an integer number (485703606960).

Almost surely, 2^{11201210010021} is an apocalyptic number.

It is an amenable number.

11201210010021 is a deficient number, since it is larger than the sum of its proper divisors (4341305412699).

11201210010021 is a wasteful number, since it uses less digits than its factorization.

11201210010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115905.

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

Adding to 11201210010021 its reverse (12001001210211), we get a palindrome (23202211220232).

The spelling of 11201210010021 in words is "eleven trillion, two hundred one billion, two hundred ten million, ten thousand, twenty-one".