11210121012111 has 24 divisors (see below), whose sum is σ = 17394729580800. Its totient is φ = 6402982288752.

The previous prime is 11210121012017. The next prime is 11210121012113. The reversal of 11210121012111 is 11121012101211.

It is not a de Polignac number, because 11210121012111 - 2⁹ = 11210121011599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210121012113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16336161 + ... + 17008538.

It is an arithmetic number, because the mean of its divisors is an integer number (724780399200).

Almost surely, 2^{11210121012111} is an apocalyptic number.

11210121012111 is a deficient number, since it is larger than the sum of its proper divisors (6184608568689).

11210121012111 is a wasteful number, since it uses less digits than its factorization.

11210121012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33347003 (or 33346996 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11210121012111 its reverse (11121012101211), we get a palindrome (22331133113322).

The spelling of 11210121012111 in words is "eleven trillion, two hundred ten billion, one hundred twenty-one million, twelve thousand, one hundred eleven".