11201112200121 has 32 divisors (see below), whose sum is σ = 15810441024000. Its totient is φ = 7034138858880.

The previous prime is 11201112200119. The next prime is 11201112200153. The reversal of 11201112200121 is 12100221110211.

It is a happy number.

It is not a de Polignac number, because 11201112200121 - 2¹ = 11201112200119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11201112200121.

It is not an unprimeable number, because it can be changed into a prime (11201112200021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12172410 + ... + 13060236.

It is an arithmetic number, because the mean of its divisors is an integer number (494076282000).

Almost surely, 2^{11201112200121} is an apocalyptic number.

It is an amenable number.

11201112200121 is a deficient number, since it is larger than the sum of its proper divisors (4609328823879).

11201112200121 is a wasteful number, since it uses less digits than its factorization.

11201112200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889109.

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

Adding to 11201112200121 its reverse (12100221110211), we get a palindrome (23301333310332).

The spelling of 11201112200121 in words is "eleven trillion, two hundred one billion, one hundred twelve million, two hundred thousand, one hundred twenty-one".