7021216673312 has 192 divisors, whose sum is σ = 15342450278400. Its totient is φ = 3147998515200.

The previous prime is 7021216673257. The next prime is 7021216673323. The reversal of 7021216673312 is 2133766121207.

It is a happy number.

It is a super-3 number, since 3×7021216673312³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7021216673312.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 712158239 + ... + 712168097.

It is an arithmetic number, because the mean of its divisors is an integer number (79908595200).

Almost surely, 2^{7021216673312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7021216673312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7671225139200).

7021216673312 is an abundant number, since it is smaller than the sum of its proper divisors (8321233605088).

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

7021216673312 is a wasteful number, since it uses less digits than its factorization.

7021216673312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10439 (or 10431 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 7021216673312 in words is "seven trillion, twenty-one billion, two hundred sixteen million, six hundred seventy-three thousand, three hundred twelve".