11101201200021 has 32 divisors (see below), whose sum is σ = 15023120112000. Its totient is φ = 7290833338368.

The previous prime is 11101201199999. The next prime is 11101201200031. The reversal of 11101201200021 is 12000210210111.

11101201200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11101201200021 - 2³⁹ = 10551445386133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101201200031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 602236821 + ... + 602255253.

It is an arithmetic number, because the mean of its divisors is an integer number (469472503500).

Almost surely, 2^{11101201200021} is an apocalyptic number.

It is an amenable number.

11101201200021 is a deficient number, since it is larger than the sum of its proper divisors (3921918911979).

11101201200021 is a wasteful number, since it uses less digits than its factorization.

11101201200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29013.

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

Adding to 11101201200021 its reverse (12000210210111), we get a palindrome (23101411410132).

The spelling of 11101201200021 in words is "eleven trillion, one hundred one billion, two hundred one million, two hundred thousand, twenty-one".