11201021020221 has 8 divisors (see below), whose sum is σ = 14935004754144. Its totient is φ = 7467192316560.

The previous prime is 11201021020141. The next prime is 11201021020243. The reversal of 11201021020221 is 12202012010211.

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

It is not a de Polignac number, because 11201021020221 - 2³¹ = 11198873536573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11201021020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201021020921) 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, 38588875 + ... + 38878056.

It is an arithmetic number, because the mean of its divisors is an integer number (1866875594268).

Almost surely, 2^{11201021020221} is an apocalyptic number.

It is an amenable number.

11201021020221 is a deficient number, since it is larger than the sum of its proper divisors (3733983733923).

11201021020221 is an equidigital number, since it uses as much as digits as its factorization.

11201021020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77515131.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11201021020221 its reverse (12202012010211), we get a palindrome (23403033030432).

The spelling of 11201021020221 in words is "eleven trillion, two hundred one billion, twenty-one million, twenty thousand, two hundred twenty-one".