216701099 has 4 divisors (see below), whose sum is σ = 228106440. Its totient is φ = 205295760.

The previous prime is 216701083. The next prime is 216701141. The reversal of 216701099 is 990107612.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 216701099 - 2⁴ = 216701083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216701039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5702642 + ... + 5702679.

It is an arithmetic number, because the mean of its divisors is an integer number (57026610).

Almost surely, 2^216701099 is an apocalyptic number.

216701099 is a deficient number, since it is larger than the sum of its proper divisors (11405341).

216701099 is a wasteful number, since it uses less digits than its factorization.

216701099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11405340.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 216701099 is about 14720.7710056233. The cubic root of 216701099 is about 600.6484646443.

The spelling of 216701099 in words is "two hundred sixteen million, seven hundred one thousand, ninety-nine".