10821128216 has 16 divisors (see below), whose sum is σ = 21357490200. Its totient is φ = 5125797504.

The previous prime is 10821128207. The next prime is 10821128233. The reversal of 10821128216 is 61282112801.

It is a super-2 number, since 2×10821128216² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 35595665 + ... + 35595968.

Almost surely, 2^10821128216 is an apocalyptic number.

It is an amenable number.

10821128216 is a deficient number, since it is larger than the sum of its proper divisors (10536361984).

10821128216 is a wasteful number, since it uses less digits than its factorization.

10821128216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71191658 (or 71191654 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 32.

The spelling of 10821128216 in words is "ten billion, eight hundred twenty-one million, one hundred twenty-eight thousand, two hundred sixteen".