206101121 has 8 divisors (see below), whose sum is σ = 209088000. Its totient is φ = 203135920.

The previous prime is 206101111. The next prime is 206101163. The reversal of 206101121 is 121101602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206101121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206101096 and 206101105.

It is not an unprimeable number, because it can be changed into a prime (206101111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14240 + ... + 24798.

It is an arithmetic number, because the mean of its divisors is an integer number (26136000).

Almost surely, 2^206101121 is an apocalyptic number.

It is an amenable number.

206101121 is a deficient number, since it is larger than the sum of its proper divisors (2986879).

206101121 is a wasteful number, since it uses less digits than its factorization.

206101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10839.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 206101121 is about 14356.2223791637. Note that the first 3 decimals coincide. The cubic root of 206101121 is about 590.6906792240.

Adding to 206101121 its reverse (121101602), we get a palindrome (327202723).

The spelling of 206101121 in words is "two hundred six million, one hundred one thousand, one hundred twenty-one".