80232221 has 2 divisors, whose sum is σ = 80232222. Its totient is φ = 80232220.

The previous prime is 80232167. The next prime is 80232227. The reversal of 80232221 is 12223208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59892121 + 20340100 = 7739^2 + 4510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80232221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80232193 and 80232202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80232227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40116110 + 40116111.

It is an arithmetic number, because the mean of its divisors is an integer number (40116111).

Almost surely, 2^80232221 is an apocalyptic number.

It is an amenable number.

80232221 is a deficient number, since it is larger than the sum of its proper divisors (1).

80232221 is an equidigital number, since it uses as much as digits as its factorization.

80232221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 80232221 is about 8957.2440516043. The cubic root of 80232221 is about 431.3034560634.

Adding to 80232221 its reverse (12223208), we get a palindrome (92455429).

The spelling of 80232221 in words is "eighty million, two hundred thirty-two thousand, two hundred twenty-one".