216360121 has 8 divisors (see below), whose sum is σ = 218557440. Its totient is φ = 214170768.

The previous prime is 216360119. The next prime is 216360161. The reversal of 216360121 is 121063612.

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

It is not a de Polignac number, because 216360121 - 2¹ = 216360119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216360092 and 216360101.

It is not an unprimeable number, because it can be changed into a prime (216360161) 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, 62970 + ... + 66316.

It is an arithmetic number, because the mean of its divisors is an integer number (27319680).

Almost surely, 2^216360121 is an apocalyptic number.

It is an amenable number.

216360121 is a deficient number, since it is larger than the sum of its proper divisors (2197319).

216360121 is a wasteful number, since it uses less digits than its factorization.

216360121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 216360121 is about 14709.1849196344. The cubic root of 216360121 is about 600.3332602321. Note that the first 3 decimals are identical.

The spelling of 216360121 in words is "two hundred sixteen million, three hundred sixty thousand, one hundred twenty-one".