11121020200121 has 8 divisors (see below), whose sum is σ = 12255006160320. Its totient is φ = 10026823221072.

The previous prime is 11121020200111. The next prime is 11121020200151. The reversal of 11121020200121 is 12100202012111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11121020200121 - 2⁶ = 11121020200057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121020200096 and 11121020200105.

It is not an unprimeable number, because it can be changed into a prime (11121020200111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9947244701 + ... + 9947245818.

It is an arithmetic number, because the mean of its divisors is an integer number (1531875770040).

Almost surely, 2^{11121020200121} is an apocalyptic number.

It is an amenable number.

11121020200121 is a deficient number, since it is larger than the sum of its proper divisors (1133985960199).

11121020200121 is a wasteful number, since it uses less digits than its factorization.

11121020200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19894490575.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11121020200121 its reverse (12100202012111), we get a palindrome (23221222212232).

The spelling of 11121020200121 in words is "eleven trillion, one hundred twenty-one billion, twenty million, two hundred thousand, one hundred twenty-one".