11101201012121 has 16 divisors (see below), whose sum is σ = 12316331439360. Its totient is φ = 9921488853120.

The previous prime is 11101201012079. The next prime is 11101201012151. The reversal of 11101201012121 is 12121010210111.

It is a cyclic number.

It is not a de Polignac number, because 11101201012121 - 2¹⁰ = 11101201011097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101201012096 and 11101201012105.

It is not an unprimeable number, because it can be changed into a prime (11101201012151) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27211010 + ... + 27615963.

It is an arithmetic number, because the mean of its divisors is an integer number (769770714960).

Almost surely, 2^{11101201012121} is an apocalyptic number.

11101201012121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11101201012121 is a deficient number, since it is larger than the sum of its proper divisors (1215130427239).

11101201012121 is a wasteful number, since it uses less digits than its factorization.

11101201012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54827296.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11101201012121 its reverse (12121010210111), we get a palindrome (23222211222232).

The spelling of 11101201012121 in words is "eleven trillion, one hundred one billion, two hundred one million, twelve thousand, one hundred twenty-one".