2011224331 has 4 divisors (see below), whose sum is σ = 2020007200. Its totient is φ = 2002441464.

The previous prime is 2011224307. The next prime is 2011224349. The reversal of 2011224331 is 1334221102.

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 2011224331 - 2⁷ = 2011224203 is a prime.

It is a super-2 number, since 2×2011224331² = 8090046619212795122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011224299 and 2011224308.

It is not an unprimeable number, because it can be changed into a prime (2011224361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4391091 + ... + 4391548.

It is an arithmetic number, because the mean of its divisors is an integer number (505001800).

Almost surely, 2^2011224331 is an apocalyptic number.

2011224331 is a deficient number, since it is larger than the sum of its proper divisors (8782869).

2011224331 is an equidigital number, since it uses as much as digits as its factorization.

2011224331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8782868.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2011224331 is about 44846.6758076895. The cubic root of 2011224331 is about 1262.2736161874.

Adding to 2011224331 its reverse (1334221102), we get a palindrome (3345445433).

The spelling of 2011224331 in words is "two billion, eleven million, two hundred twenty-four thousand, three hundred thirty-one".