11201021221101 has 32 divisors (see below), whose sum is σ = 15697375613568. Its totient is φ = 7095505858560.

The previous prime is 11201021221081. The next prime is 11201021221147. The reversal of 11201021221101 is 10112212010211.

It is a happy number.

It is not a de Polignac number, because 11201021221101 - 2¹⁹ = 11201020696813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201021221151) 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, 32557341 + ... + 32899581.

It is an arithmetic number, because the mean of its divisors is an integer number (490542987924).

Almost surely, 2^{11201021221101} is an apocalyptic number.

It is an amenable number.

11201021221101 is a deficient number, since it is larger than the sum of its proper divisors (4496354392467).

11201021221101 is a wasteful number, since it uses less digits than its factorization.

11201021221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349181.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11201021221101 its reverse (10112212010211), we get a palindrome (21313233231312).

The spelling of 11201021221101 in words is "eleven trillion, two hundred one billion, twenty-one million, two hundred twenty-one thousand, one hundred one".