11101200002121 has 4 divisors (see below), whose sum is σ = 14801600002832. Its totient is φ = 7400800001412.

The previous prime is 11101200002107. The next prime is 11101200002147. The reversal of 11101200002121 is 12120000210111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11101200002121 - 2¹⁰ = 11101200001097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101200002097 and 11101200002106.

It is not an unprimeable number, because it can be changed into a prime (11101200002171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1850200000351 + ... + 1850200000356.

It is an arithmetic number, because the mean of its divisors is an integer number (3700400000708).

Almost surely, 2^{11101200002121} is an apocalyptic number.

It is an amenable number.

11101200002121 is a deficient number, since it is larger than the sum of its proper divisors (3700400000711).

11101200002121 is an equidigital number, since it uses as much as digits as its factorization.

11101200002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700400000710.

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

Adding to 11101200002121 its reverse (12120000210111), we get a palindrome (23221200212232).

The spelling of 11101200002121 in words is "eleven trillion, one hundred one billion, two hundred million, two thousand, one hundred twenty-one".