2211121126105 has 32 divisors (see below), whose sum is σ = 2779690991616. Its totient is φ = 1685283055104.

The previous prime is 2211121126063. The next prime is 2211121126139. The reversal of 2211121126105 is 5016211211122.

It is a cyclic number.

It is not a de Polignac number, because 2211121126105 - 2⁷ = 2211121125977 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 2211121126105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64441384 + ... + 64475686.

It is an arithmetic number, because the mean of its divisors is an integer number (86865343488).

Almost surely, 2^{2211121126105} is an apocalyptic number.

It is an amenable number.

2211121126105 is a deficient number, since it is larger than the sum of its proper divisors (568569865511).

2211121126105 is a wasteful number, since it uses less digits than its factorization.

2211121126105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36537.

The product of its (nonzero) digits is 480, while the sum is 25.

Adding to 2211121126105 its reverse (5016211211122), we get a palindrome (7227332337227).

The spelling of 2211121126105 in words is "two trillion, two hundred eleven billion, one hundred twenty-one million, one hundred twenty-six thousand, one hundred five".