80224221 has 24 divisors (see below), whose sum is σ = 135743904. Its totient is φ = 41674080.

The previous prime is 80224219. The next prime is 80224223. The reversal of 80224221 is 12242208.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80224219) and next prime (80224223).

It is not a de Polignac number, because 80224221 - 2¹ = 80224219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80224223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23190 + ... + 26423.

It is an arithmetic number, because the mean of its divisors is an integer number (5655996).

Almost surely, 2^80224221 is an apocalyptic number.

It is an amenable number.

80224221 is a deficient number, since it is larger than the sum of its proper divisors (55519683).

80224221 is a wasteful number, since it uses less digits than its factorization.

80224221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49641 (or 49634 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 80224221 is about 8956.7974745441. The cubic root of 80224221 is about 431.2891204167.

Adding to 80224221 its reverse (12242208), we get a palindrome (92466429).

The spelling of 80224221 in words is "eighty million, two hundred twenty-four thousand, two hundred twenty-one".