2221112011 has 4 divisors (see below), whose sum is σ = 2221336000. Its totient is φ = 2220888024.

The previous prime is 2221112009. The next prime is 2221112021. The reversal of 2221112011 is 1102111222.

2221112011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2221112011 - 2¹ = 2221112009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221111982 and 2221112000.

It is not an unprimeable number, because it can be changed into a prime (2221112021) 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, 96396 + ... + 117193.

It is an arithmetic number, because the mean of its divisors is an integer number (555334000).

Almost surely, 2^2221112011 is an apocalyptic number.

2221112011 is a deficient number, since it is larger than the sum of its proper divisors (223989).

2221112011 is a wasteful number, since it uses less digits than its factorization.

2221112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223988.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2221112011 is about 47128.6750397250. The cubic root of 2221112011 is about 1304.7385276901.

Adding to 2221112011 its reverse (1102111222), we get a palindrome (3323223233).

The spelling of 2221112011 in words is "two billion, two hundred twenty-one million, one hundred twelve thousand, eleven".