8221125365284 has 24 divisors (see below), whose sum is σ = 15493924850040. Its totient is φ = 3794300530944.

The previous prime is 8221125365213. The next prime is 8221125365309. The reversal of 8221125365284 is 4825635211228.

It can be written as a sum of positive squares in 4 ways, for example, as 1779315888100 + 6441809477184 = 1333910^2 + 2538072^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1777992 + ... + 4427584.

It is an arithmetic number, because the mean of its divisors is an integer number (645580202085).

Almost surely, 2^{8221125365284} is an apocalyptic number.

It is an amenable number.

8221125365284 is a deficient number, since it is larger than the sum of its proper divisors (7272799484756).

8221125365284 is a wasteful number, since it uses less digits than its factorization.

8221125365284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709279 (or 2709277 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 49.

The spelling of 8221125365284 in words is "eight trillion, two hundred twenty-one billion, one hundred twenty-five million, three hundred sixty-five thousand, two hundred eighty-four".