2216328304988 has 12 divisors (see below), whose sum is σ = 4432656610032. Its totient is φ = 949854987840.

The previous prime is 2216328304979. The next prime is 2216328305041. The reversal of 2216328304988 is 8894038236122.

It is a happy number.

2216328304988 is an admirable number.

It is a super-2 number, since 2×2216328304988² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39577291133 + ... + 39577291188.

It is an arithmetic number, because the mean of its divisors is an integer number (369388050836).

Almost surely, 2^{2216328304988} is an apocalyptic number.

2216328304988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2216328304988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2216328304988 is a wasteful number, since it uses less digits than its factorization.

2216328304988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79154582332 (or 79154582330 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 2216328304988 in words is "two trillion, two hundred sixteen billion, three hundred twenty-eight million, three hundred four thousand, nine hundred eighty-eight".