2011220110111 has 4 divisors (see below), whose sum is σ = 2011227111000. Its totient is φ = 2011213109224.

The previous prime is 2011220110079. The next prime is 2011220110183. The reversal of 2011220110111 is 1110110221102.

It is a happy number.

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 2011220110111 - 2⁵ = 2011220110079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011220110091 and 2011220110100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011220116111) 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, 3050221 + ... + 3650518.

It is an arithmetic number, because the mean of its divisors is an integer number (502806777750).

Almost surely, 2^{2011220110111} is an apocalyptic number.

2011220110111 is a deficient number, since it is larger than the sum of its proper divisors (7000889).

2011220110111 is an equidigital number, since it uses as much as digits as its factorization.

2011220110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000888.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2011220110111 its reverse (1110110221102), we get a palindrome (3121330331213).

The spelling of 2011220110111 in words is "two trillion, eleven billion, two hundred twenty million, one hundred ten thousand, one hundred eleven".