206121160201 has 16 divisors (see below), whose sum is σ = 229679828928. Its totient is φ = 183405081600.

The previous prime is 206121160187. The next prime is 206121160241. The reversal of 206121160201 is 102061121602.

It is a cyclic number.

It is not a de Polignac number, because 206121160201 - 2²⁵ = 206087605769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206121160241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874536 + ... + 1084921.

It is an arithmetic number, because the mean of its divisors is an integer number (14354989308).

Almost surely, 2^206121160201 is an apocalyptic number.

It is an amenable number.

206121160201 is a deficient number, since it is larger than the sum of its proper divisors (23558668727).

206121160201 is a wasteful number, since it uses less digits than its factorization.

206121160201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959672.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 206121160201 its reverse (102061121602), we get a palindrome (308182281803).

The spelling of 206121160201 in words is "two hundred six billion, one hundred twenty-one million, one hundred sixty thousand, two hundred one".