11121020200001 has 4 divisors (see below), whose sum is σ = 11121057305904. Its totient is φ = 11120983094100.

The previous prime is 11121020199979. The next prime is 11121020200057. The reversal of 11121020200001 is 10000202012111.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121020200001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11121020200061) 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, 18099695 + ... + 18704036.

It is an arithmetic number, because the mean of its divisors is an integer number (2780264326476).

Almost surely, 2^{11121020200001} is an apocalyptic number.

It is an amenable number.

11121020200001 is a deficient number, since it is larger than the sum of its proper divisors (37105903).

11121020200001 is an equidigital number, since it uses as much as digits as its factorization.

11121020200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37105902.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11121020200001 its reverse (10000202012111), we get a palindrome (21121222212112).

The spelling of 11121020200001 in words is "eleven trillion, one hundred twenty-one billion, twenty million, two hundred thousand, one".