11201021100021 has 8 divisors (see below), whose sum is σ = 15416459148544. Its totient is φ = 7226465225760.

The previous prime is 11201021099971. The next prime is 11201021100041. The reversal of 11201021100021 is 12000112010211.

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

It is not a de Polignac number, because 11201021100021 - 2¹⁵ = 11201021067253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201021100041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60220543456 + ... + 60220543641.

It is an arithmetic number, because the mean of its divisors is an integer number (1927057393568).

Almost surely, 2^{11201021100021} is an apocalyptic number.

It is an amenable number.

11201021100021 is a deficient number, since it is larger than the sum of its proper divisors (4215438048523).

11201021100021 is a wasteful number, since it uses less digits than its factorization.

11201021100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120441087131.

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

Adding to 11201021100021 its reverse (12000112010211), we get a palindrome (23201133110232).

The spelling of 11201021100021 in words is "eleven trillion, two hundred one billion, twenty-one million, one hundred thousand, twenty-one".