11204111210121 has 12 divisors (see below), whose sum is σ = 16212058960240. Its totient is φ = 7456326195960.

The previous prime is 11204111210099. The next prime is 11204111210183. The reversal of 11204111210121 is 12101211140211.

11204111210121 is a `hidden beast` number, since 1 + 1 + 20 + 411 + 1 + 210 + 1 + 21 = 666.

It is not a de Polignac number, because 11204111210121 - 2²⁵ = 11204077655689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11204111210094 and 11204111210103.

It is not an unprimeable number, because it can be changed into a prime (11204111280121) 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 11 ways as a sum of consecutive naturals, for example, 1090101031 + ... + 1090111308.

Almost surely, 2^{11204111210121} is an apocalyptic number.

It is an amenable number.

11204111210121 is a deficient number, since it is larger than the sum of its proper divisors (5007947750119).

11204111210121 is a wasteful number, since it uses less digits than its factorization.

11204111210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180212916 (or 2180212913 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11204111210121 its reverse (12101211140211), we get a palindrome (23305322350332).

The spelling of 11204111210121 in words is "eleven trillion, two hundred four billion, one hundred eleven million, two hundred ten thousand, one hundred twenty-one".