884322221 has 2 divisors, whose sum is σ = 884322222. Its totient is φ = 884322220.

The previous prime is 884322217. The next prime is 884322233. The reversal of 884322221 is 122223488.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 696220996 + 188101225 = 26386^2 + 13715^2 .

It is a cyclic number.

It is not a de Polignac number, because 884322221 - 2² = 884322217 is a prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (884322211) 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, 442161110 + 442161111.

It is an arithmetic number, because the mean of its divisors is an integer number (442161111).

Almost surely, 2^884322221 is an apocalyptic number.

It is an amenable number.

884322221 is a deficient number, since it is larger than the sum of its proper divisors (1).

884322221 is an equidigital number, since it uses as much as digits as its factorization.

884322221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288, while the sum is 32.

The square root of 884322221 is about 29737.5557334492. Note that the first 3 decimals coincide. The cubic root of 884322221 is about 959.8503170128.

The spelling of 884322221 in words is "eight hundred eighty-four million, three hundred twenty-two thousand, two hundred twenty-one".