11102102121 has 16 divisors (see below), whose sum is σ = 16152023808. Its totient is φ = 6727083600.

The previous prime is 11102102113. The next prime is 11102102147. The reversal of 11102102121 is 12120120111.

11102102121 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 11102102121 - 2³ = 11102102113 is a prime.

It is a super-2 number, since 2×11102102121² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11102102097 and 11102102106.

It is not an unprimeable number, because it can be changed into a prime (11102102171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128610 + ... + 196836.

It is an arithmetic number, because the mean of its divisors is an integer number (1009501488).

Almost surely, 2^11102102121 is an apocalyptic number.

11102102121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11102102121 is a deficient number, since it is larger than the sum of its proper divisors (5049921687).

11102102121 is a wasteful number, since it uses less digits than its factorization.

11102102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73172.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11102102121 its reverse (12120120111), we get a palindrome (23222222232).

The spelling of 11102102121 in words is "eleven billion, one hundred two million, one hundred two thousand, one hundred twenty-one".