2216517700 has 18 divisors (see below), whose sum is σ = 4809843626. Its totient is φ = 886607040.

The previous prime is 2216517691. The next prime is 2216517703. The reversal of 2216517700 is 77156122.

It can be written as a sum of positive squares in 3 ways, for example, as 9585216 + 2206932484 = 3096^2 + 46978^2 .

It is not an unprimeable number, because it can be changed into a prime (2216517703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11082489 + ... + 11082688.

Almost surely, 2^2216517700 is an apocalyptic number.

2216517700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2216517700 is an abundant number, since it is smaller than the sum of its proper divisors (2593325926).

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

2216517700 is a wasteful number, since it uses less digits than its factorization.

2216517700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22165191 (or 22165184 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 2216517700 is about 47079.9076039875. The cubic root of 2216517700 is about 1303.8383010822.

The spelling of 2216517700 in words is "two billion, two hundred sixteen million, five hundred seventeen thousand, seven hundred".