216120107 has 8 divisors (see below), whose sum is σ = 252738816. Its totient is φ = 180937512.

The previous prime is 216120101. The next prime is 216120137. The reversal of 216120107 is 701021612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216120107 - 2⁶ = 216120043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216120101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358703 + ... + 359304.

It is an arithmetic number, because the mean of its divisors is an integer number (31592352).

Almost surely, 2^216120107 is an apocalyptic number.

216120107 is a deficient number, since it is larger than the sum of its proper divisors (36618709).

216120107 is an equidigital number, since it uses as much as digits as its factorization.

216120107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718057.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 216120107 is about 14701.0240119524. The cubic root of 216120107 is about 600.1111895787. Note that the first 4 decimals are identical.

Adding to 216120107 its reverse (701021612), we get a palindrome (917141719).

The spelling of 216120107 in words is "two hundred sixteen million, one hundred twenty thousand, one hundred seven".