2011110220001 has 4 divisors (see below), whose sum is σ = 2011113672900. Its totient is φ = 2011106767104.

The previous prime is 2011110219977. The next prime is 2011110220051. The reversal of 2011110220001 is 1000220111102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1631875947601 + 379234272400 = 1277449^2 + 615820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011110220001 - 2¹⁴ = 2011110203617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011110220051) 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 3 ways as a sum of consecutive naturals, for example, 613736 + ... + 2097353.

It is an arithmetic number, because the mean of its divisors is an integer number (502778418225).

Almost surely, 2^{2011110220001} is an apocalyptic number.

It is an amenable number.

2011110220001 is a deficient number, since it is larger than the sum of its proper divisors (3452899).

2011110220001 is an equidigital number, since it uses as much as digits as its factorization.

2011110220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452898.

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

Adding to 2011110220001 its reverse (1000220111102), we get a palindrome (3011330331103).

The spelling of 2011110220001 in words is "two trillion, eleven billion, one hundred ten million, two hundred twenty thousand, one".