8004921212 has 24 divisors (see below), whose sum is σ = 14260807680. Its totient is φ = 3930767280.

The previous prime is 8004921157. The next prime is 8004921227. The reversal of 8004921212 is 2121294008.

It is a super-2 number, since 2×8004921212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 43589 + ... + 133827.

It is an arithmetic number, because the mean of its divisors is an integer number (594200320).

Almost surely, 2^8004921212 is an apocalyptic number.

It is an amenable number.

8004921212 is a deficient number, since it is larger than the sum of its proper divisors (6255886468).

8004921212 is a wasteful number, since it uses less digits than its factorization.

8004921212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90641 (or 90639 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 8004921212 is about 89470.2252819339. The cubic root of 8004921212 is about 2000.4100169373.

The spelling of 8004921212 in words is "eight billion, four million, nine hundred twenty-one thousand, two hundred twelve".