216101099 has 2 divisors, whose sum is σ = 216101100. Its totient is φ = 216101098.

The previous prime is 216101089. The next prime is 216101131. The reversal of 216101099 is 990101612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216101099 - 2¹² = 216097003 is a prime.

It is not a weakly prime, because it can be changed into another prime (216101089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108050549 + 108050550.

It is an arithmetic number, because the mean of its divisors is an integer number (108050550).

Almost surely, 2^216101099 is an apocalyptic number.

216101099 is a deficient number, since it is larger than the sum of its proper divisors (1).

216101099 is an equidigital number, since it uses as much as digits as its factorization.

216101099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 216101099 is about 14700.3775121593. The cubic root of 216101099 is about 600.0935955842.

The spelling of 216101099 in words is "two hundred sixteen million, one hundred one thousand, ninety-nine".