11011122200121 has 16 divisors (see below), whose sum is σ = 14729648598720. Its totient is φ = 7316701862400.

The previous prime is 11011122199997. The next prime is 11011122200189. The reversal of 11011122200121 is 12100222111011.

It is a happy number.

11011122200121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11011122200121 - 2⁷ = 11011122199993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11011122200121.

It is not an unprimeable number, because it can be changed into a prime (11011122200921) 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, 2262435 + ... + 5209688.

It is an arithmetic number, because the mean of its divisors is an integer number (920603037420).

Almost surely, 2^{11011122200121} is an apocalyptic number.

It is an amenable number.

11011122200121 is a deficient number, since it is larger than the sum of its proper divisors (3718526398599).

11011122200121 is a wasteful number, since it uses less digits than its factorization.

11011122200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473736.

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

Adding to 11011122200121 its reverse (12100222111011), we get a palindrome (23111344311132).

The spelling of 11011122200121 in words is "eleven trillion, eleven billion, one hundred twenty-two million, two hundred thousand, one hundred twenty-one".