75222011 has 2 divisors, whose sum is σ = 75222012. Its totient is φ = 75222010.

The previous prime is 75221989. The next prime is 75222019. The reversal of 75222011 is 11022257.

It is a strong prime.

It is an emirp because it is prime and its reverse (11022257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75222011 - 2⁶ = 75221947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75222019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37611005 + 37611006.

It is an arithmetic number, because the mean of its divisors is an integer number (37611006).

Almost surely, 2^75222011 is an apocalyptic number.

75222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

75222011 is an equidigital number, since it uses as much as digits as its factorization.

75222011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 75222011 is about 8673.0623772691. The cubic root of 75222011 is about 422.1320368040.

Adding to 75222011 its reverse (11022257), we get a palindrome (86244268).

The spelling of 75222011 in words is "seventy-five million, two hundred twenty-two thousand, eleven".