11201201121021 has 8 divisors (see below), whose sum is σ = 15338581715424. Its totient is φ = 7265643970320.

The previous prime is 11201201121001. The next prime is 11201201121023. The reversal of 11201201121021 is 12012110210211.

It is a happy number.

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

It is not a de Polignac number, because 11201201121021 - 2⁹ = 11201201120509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201201121023) 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 7 ways as a sum of consecutive naturals, for example, 50455860795 + ... + 50455861016.

It is an arithmetic number, because the mean of its divisors is an integer number (1917322714428).

Almost surely, 2^{11201201121021} is an apocalyptic number.

It is an amenable number.

11201201121021 is a deficient number, since it is larger than the sum of its proper divisors (4137380594403).

11201201121021 is a wasteful number, since it uses less digits than its factorization.

11201201121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100911721851.

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

Adding to 11201201121021 its reverse (12012110210211), we get a palindrome (23213311331232).

The spelling of 11201201121021 in words is "eleven trillion, two hundred one billion, two hundred one million, one hundred twenty-one thousand, twenty-one".