1033220081 has 2 divisors, whose sum is σ = 1033220082. Its totient is φ = 1033220080.

The previous prime is 1033220077. The next prime is 1033220113. The reversal of 1033220081 is 1800223301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002039025 + 31181056 = 31655^2 + 5584^2 .

It is an emirp because it is prime and its reverse (1800223301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1033220081 - 2² = 1033220077 is a prime.

It is a super-2 number, since 2×1033220081² = 2135087471563293122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1033220011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516610040 + 516610041.

It is an arithmetic number, because the mean of its divisors is an integer number (516610041).

Almost surely, 2^1033220081 is an apocalyptic number.

It is an amenable number.

1033220081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1033220081 is an equidigital number, since it uses as much as digits as its factorization.

1033220081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1033220081 is about 32143.7409303895. The cubic root of 1033220081 is about 1010.9529551092.

Adding to 1033220081 its reverse (1800223301), we get a palindrome (2833443382).

The spelling of 1033220081 in words is "one billion, thirty-three million, two hundred twenty thousand, eighty-one".