11011110222011 has 4 divisors (see below), whose sum is σ = 11011184554800. Its totient is φ = 11011035889224.

The previous prime is 11011110221977. The next prime is 11011110222023. The reversal of 11011110222011 is 11022201111011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011110222011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011110222071) 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, 36943751 + ... + 37240608.

It is an arithmetic number, because the mean of its divisors is an integer number (2752796138700).

Almost surely, 2^{11011110222011} is an apocalyptic number.

11011110222011 is a deficient number, since it is larger than the sum of its proper divisors (74332789).

11011110222011 is an equidigital number, since it uses as much as digits as its factorization.

11011110222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74332788.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11011110222011 its reverse (11022201111011), we get a palindrome (22033311333022).

It can be divided in two parts, 11011 and 110222011, that multiplied together give a palindrome (1213654563121).

The spelling of 11011110222011 in words is "eleven trillion, eleven billion, one hundred ten million, two hundred twenty-two thousand, eleven".