2011220033 has 2 divisors, whose sum is σ = 2011220034. Its totient is φ = 2011220032.

The previous prime is 2011220023. The next prime is 2011220039. The reversal of 2011220033 is 3300221102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1627961104 + 383258929 = 40348^2 + 19577^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011220033 - 2¹⁰ = 2011219009 is a prime.

It is a super-2 number, since 2×2011220033² = 8090012042281042178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2011220039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005610016 + 1005610017.

It is an arithmetic number, because the mean of its divisors is an integer number (1005610017).

Almost surely, 2^2011220033 is an apocalyptic number.

It is an amenable number.

2011220033 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011220033 is an equidigital number, since it uses as much as digits as its factorization.

2011220033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2011220033 is about 44846.6278888391. The cubic root of 2011220033 is about 1262.2727170243.

Adding to 2011220033 its reverse (3300221102), we get a palindrome (5311441135).

The spelling of 2011220033 in words is "two billion, eleven million, two hundred twenty thousand, thirty-three".