8821216630412 has 96 divisors (see below), whose sum is σ = 16620632663040. Its totient is φ = 4086255303680.

The previous prime is 8821216630411. The next prime is 8821216630459. The reversal of 8821216630412 is 2140366121288.

8821216630412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (8821216630411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307377248 + ... + 307405944.

It is an arithmetic number, because the mean of its divisors is an integer number (173131590240).

Almost surely, 2^{8821216630412} is an apocalyptic number.

8821216630412 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8821216630412 is a deficient number, since it is larger than the sum of its proper divisors (7799416032628).

8821216630412 is a wasteful number, since it uses less digits than its factorization.

8821216630412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29351 (or 29349 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 8821216630412 in words is "eight trillion, eight hundred twenty-one billion, two hundred sixteen million, six hundred thirty thousand, four hundred twelve".