1220200100011 has 4 divisors (see below), whose sum is σ = 1225305540000.
Its totient is φ = 1215094660024.
The previous prime is 1220200099991. The next prime is 1220200100017. The reversal of 1220200100011 is 1100010020221.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1220200100011 - 27 = 1220200099883 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1220200100017) 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, 2552719636 + ... + 2552720113.
It is an arithmetic number, because the mean of its divisors is an integer number (306326385000).
Almost surely, 21220200100011 is an apocalyptic number.
1220200100011 is a deficient number, since it is larger than the sum of its proper divisors (5105439989).
1220200100011 is an equidigital number, since it uses as much as digits as its factorization.
1220200100011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5105439988.
The product of its (nonzero) digits is 8, while the sum is 10.
Adding to 1220200100011 its reverse (1100010020221), we get a palindrome (2320210120232).
The spelling of 1220200100011 in words is "one trillion, two hundred twenty billion, two hundred million, one hundred thousand, eleven".