8221354531228 has 12 divisors (see below), whose sum is σ = 14387951605720. Its totient is φ = 4110511215312.

The previous prime is 8221354531219. The next prime is 8221354531231.

It is a happy number.

8221354531228 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41401143 + ... + 41599246.

Almost surely, 2^{8221354531228} is an apocalyptic number.

It is an amenable number.

8221354531228 is a deficient number, since it is larger than the sum of its proper divisors (6166597074492).

8221354531228 is a wasteful number, since it uses less digits than its factorization.

8221354531228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83025156 (or 83025154 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The spelling of 8221354531228 in words is "eight trillion, two hundred twenty-one billion, three hundred fifty-four million, five hundred thirty-one thousand, two hundred twenty-eight".