2011220233 has 4 divisors (see below), whose sum is σ = 2194058448. Its totient is φ = 1828382020.

The previous prime is 2011220231. The next prime is 2011220297. The reversal of 2011220233 is 3320221102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011220233 - 2¹ = 2011220231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011220231) 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, 91419091 + ... + 91419112.

It is an arithmetic number, because the mean of its divisors is an integer number (548514612).

Almost surely, 2^2011220233 is an apocalyptic number.

It is an amenable number.

2011220233 is a deficient number, since it is larger than the sum of its proper divisors (182838215).

2011220233 is a wasteful number, since it uses less digits than its factorization.

2011220233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182838214.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2011220233 is about 44846.6301186611. The cubic root of 2011220233 is about 1262.2727588654.

Adding to 2011220233 its reverse (3320221102), we get a palindrome (5331441335).

The spelling of 2011220233 in words is "two billion, eleven million, two hundred twenty thousand, two hundred thirty-three".