47212211 has 2 divisors, whose sum is σ = 47212212. Its totient is φ = 47212210.

The previous prime is 47212201. The next prime is 47212229. The reversal of 47212211 is 11221274.

47212211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47212211 - 2¹⁸ = 46950067 is a prime.

It is not a weakly prime, because it can be changed into another prime (47212201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23606105 + 23606106.

It is an arithmetic number, because the mean of its divisors is an integer number (23606106).

Almost surely, 2^47212211 is an apocalyptic number.

47212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

47212211 is an equidigital number, since it uses as much as digits as its factorization.

47212211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 20.

The square root of 47212211 is about 6871.1142473401. The cubic root of 47212211 is about 361.4249362856.

Adding to 47212211 its reverse (11221274), we get a palindrome (58433485).

The spelling of 47212211 in words is "forty-seven million, two hundred twelve thousand, two hundred eleven".