2011221113 has 8 divisors (see below), whose sum is σ = 2214565920. Its totient is φ = 1811294080.

The previous prime is 2011221073. The next prime is 2011221119. The reversal of 2011221113 is 3111221102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011221113 - 2⁶ = 2011221049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011221119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853208 + ... + 855561.

It is an arithmetic number, because the mean of its divisors is an integer number (276820740).

Almost surely, 2^2011221113 is an apocalyptic number.

It is an amenable number.

2011221113 is a deficient number, since it is larger than the sum of its proper divisors (203344807).

2011221113 is a wasteful number, since it uses less digits than its factorization.

2011221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708887.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2011221113 is about 44846.6399298766. The cubic root of 2011221113 is about 1262.2729429659.

Adding to 2011221113 its reverse (3111221102), we get a palindrome (5122442215).

The spelling of 2011221113 in words is "two billion, eleven million, two hundred twenty-one thousand, one hundred thirteen".