11021112211121 has 16 divisors (see below), whose sum is σ = 11205243993600. Its totient is φ = 10837800744960.

The previous prime is 11021112211079. The next prime is 11021112211129. The reversal of 11021112211121 is 12111221112011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021112211121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021112211121.

It is not an unprimeable number, because it can be changed into a prime (11021112211129) 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, 91017800 + ... + 91138806.

It is an arithmetic number, because the mean of its divisors is an integer number (700327749600).

Almost surely, 2^{11021112211121} is an apocalyptic number.

It is an amenable number.

11021112211121 is a deficient number, since it is larger than the sum of its proper divisors (184131782479).

11021112211121 is a wasteful number, since it uses less digits than its factorization.

11021112211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124384.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11021112211121 its reverse (12111221112011), we get a palindrome (23132333323132).

The spelling of 11021112211121 in words is "eleven trillion, twenty-one billion, one hundred twelve million, two hundred eleven thousand, one hundred twenty-one".