80322221 has 6 divisors (see below), whose sum is σ = 93436110. Its totient is φ = 68847576.

The previous prime is 80322211. The next prime is 80322241. The reversal of 80322221 is 12222308.

It can be written as a sum of positive squares in only one way, i.e., 76562500 + 3759721 = 8750^2 + 1939^2 .

It is a de Polignac number, because none of the positive numbers 2^k-80322221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80322193 and 80322202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80322211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 819566 + ... + 819663.

It is an arithmetic number, because the mean of its divisors is an integer number (15572685).

Almost surely, 2^80322221 is an apocalyptic number.

It is an amenable number.

80322221 is a deficient number, since it is larger than the sum of its proper divisors (13113889).

80322221 is a wasteful number, since it uses less digits than its factorization.

80322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639243 (or 1639236 counting only the distinct ones).

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

The square root of 80322221 is about 8962.2665102082. The cubic root of 80322221 is about 431.4646664651.

Adding to 80322221 its reverse (12222308), we get a palindrome (92544529).

The spelling of 80322221 in words is "eighty million, three hundred twenty-two thousand, two hundred twenty-one".