28300216122 has 24 divisors (see below), whose sum is σ = 62974356276. Its totient is φ = 9178448256.

The previous prime is 28300216099. The next prime is 28300216141. The reversal of 28300216122 is 22161200382.

28300216122 is a `hidden beast` number, since 28 + 3 + 0 + 0 + 21 + 612 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28059935121 + 240281001 = 167511^2 + 15501^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21245743 + ... + 21247074.

Almost surely, 2^28300216122 is an apocalyptic number.

28300216122 is an abundant number, since it is smaller than the sum of its proper divisors (34674140154).

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

28300216122 is a wasteful number, since it uses less digits than its factorization.

28300216122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42492862 (or 42492859 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 28300216122 in words is "twenty-eight billion, three hundred million, two hundred sixteen thousand, one hundred twenty-two".