33130222261 has 2 divisors, whose sum is σ = 33130222262. Its totient is φ = 33130222260.

The previous prime is 33130222231. The next prime is 33130222379. The reversal of 33130222261 is 16222203133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33040332900 + 89889361 = 181770^2 + 9481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33130222261 is a prime.

It is a super-2 number, since 2×33130222261² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33130222231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16565111130 + 16565111131.

It is an arithmetic number, because the mean of its divisors is an integer number (16565111131).

Almost surely, 2^33130222261 is an apocalyptic number.

It is an amenable number.

33130222261 is a deficient number, since it is larger than the sum of its proper divisors (1).

33130222261 is an equidigital number, since it uses as much as digits as its factorization.

33130222261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 33130222261 its reverse (16222203133), we get a palindrome (49352425394).

The spelling of 33130222261 in words is "thirty-three billion, one hundred thirty million, two hundred twenty-two thousand, two hundred sixty-one".