11201210221111 has 16 divisors (see below), whose sum is σ = 11376689544000. Its totient is φ = 11026227744000.

The previous prime is 11201210221109. The next prime is 11201210221133. The reversal of 11201210221111 is 11112201210211.

It is a cyclic number.

It is not a de Polignac number, because 11201210221111 - 2¹ = 11201210221109 is a prime.

It is a super-4 number, since 4×11201210221111⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201210251111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470607411 + ... + 470631211.

It is an arithmetic number, because the mean of its divisors is an integer number (711043096500).

Almost surely, 2^{11201210221111} is an apocalyptic number.

11201210221111 is a deficient number, since it is larger than the sum of its proper divisors (175479322889).

11201210221111 is an equidigital number, since it uses as much as digits as its factorization.

11201210221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33930.

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

Adding to 11201210221111 its reverse (11112201210211), we get a palindrome (22313411431322).

The spelling of 11201210221111 in words is "eleven trillion, two hundred one billion, two hundred ten million, two hundred twenty-one thousand, one hundred eleven".