2220111011 has 4 divisors (see below), whose sum is σ = 2261999952. Its totient is φ = 2178222072.

The previous prime is 2220110989. The next prime is 2220111017. The reversal of 2220111011 is 1101110222.

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-2220111011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220110983 and 2220111001.

It is not an unprimeable number, because it can be changed into a prime (2220111017) 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, 20944391 + ... + 20944496.

It is an arithmetic number, because the mean of its divisors is an integer number (565499988).

Almost surely, 2^2220111011 is an apocalyptic number.

2220111011 is a deficient number, since it is larger than the sum of its proper divisors (41888941).

2220111011 is an equidigital number, since it uses as much as digits as its factorization.

2220111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41888940.

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

The square root of 2220111011 is about 47118.0539814623. The cubic root of 2220111011 is about 1304.5424938251.

Adding to 2220111011 its reverse (1101110222), we get a palindrome (3321221233).

The spelling of 2220111011 in words is "two billion, two hundred twenty million, one hundred eleven thousand, eleven".