11102012121 has 16 divisors (see below), whose sum is σ = 15085587200. Its totient is φ = 7261083648.

The previous prime is 11102012111. The next prime is 11102012137. The reversal of 11102012121 is 12121020111.

It is not a de Polignac number, because 11102012121 - 2¹⁹ = 11101487833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11102012097 and 11102012106.

It is not an unprimeable number, because it can be changed into a prime (11102012111) 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, 111976 + ... + 186393.

It is an arithmetic number, because the mean of its divisors is an integer number (942849200).

Almost surely, 2^11102012121 is an apocalyptic number.

It is an amenable number.

11102012121 is a deficient number, since it is larger than the sum of its proper divisors (3983575079).

11102012121 is a wasteful number, since it uses less digits than its factorization.

11102012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298608.

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

Adding to 11102012121 its reverse (12121020111), we get a palindrome (23223032232).

The spelling of 11102012121 in words is "eleven billion, one hundred two million, twelve thousand, one hundred twenty-one".