11201200220021 has 32 divisors (see below), whose sum is σ = 13381069363200. Its totient is φ = 9173563439040.

The previous prime is 11201200219907. The next prime is 11201200220029. The reversal of 11201200220021 is 12002200210211.

It is a de Polignac number, because none of the positive numbers 2^k-11201200220021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11201200219978 and 11201200220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201200220029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8960246 + ... + 10133528.

It is an arithmetic number, because the mean of its divisors is an integer number (418158417600).

Almost surely, 2^{11201200220021} is an apocalyptic number.

It is an amenable number.

11201200220021 is a deficient number, since it is larger than the sum of its proper divisors (2179869143179).

11201200220021 is a wasteful number, since it uses less digits than its factorization.

11201200220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173809.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11201200220021 its reverse (12002200210211), we get a palindrome (23203400430232).

The spelling of 11201200220021 in words is "eleven trillion, two hundred one billion, two hundred million, two hundred twenty thousand, twenty-one".