48216221 has 2 divisors, whose sum is σ = 48216222. Its totient is φ = 48216220.

The previous prime is 48216197. The next prime is 48216227. The reversal of 48216221 is 12261284.

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., 42432196 + 5784025 = 6514^2 + 2405^2 .

It is a cyclic number.

It is not a de Polignac number, because 48216221 - 2¹⁸ = 47954077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48216227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24108110 + 24108111.

It is an arithmetic number, because the mean of its divisors is an integer number (24108111).

Almost surely, 2^48216221 is an apocalyptic number.

It is an amenable number.

48216221 is a deficient number, since it is larger than the sum of its proper divisors (1).

48216221 is an equidigital number, since it uses as much as digits as its factorization.

48216221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 26.

The square root of 48216221 is about 6943.7901033945. The cubic root of 48216221 is about 363.9689951654.

The spelling of 48216221 in words is "forty-eight million, two hundred sixteen thousand, two hundred twenty-one".