8221472784132 has 12 divisors (see below), whose sum is σ = 19183436496336. Its totient is φ = 2740490928040.

The previous prime is 8221472784103. The next prime is 8221472784149. The reversal of 8221472784132 is 2314872741228.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8221472784132² (a number of 27 digits) contains 22 as substring.

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, 342561365994 + ... + 342561366017.

It is an arithmetic number, because the mean of its divisors is an integer number (1598619708028).

Almost surely, 2^{8221472784132} is an apocalyptic number.

It is an amenable number.

8221472784132 is an abundant number, since it is smaller than the sum of its proper divisors (10961963712204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8221472784132 is a wasteful number, since it uses less digits than its factorization.

8221472784132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685122732018 (or 685122732016 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 51.

The spelling of 8221472784132 in words is "eight trillion, two hundred twenty-one billion, four hundred seventy-two million, seven hundred eighty-four thousand, one hundred thirty-two".