206271121 has 16 divisors (see below), whose sum is σ = 238379904. Its totient is φ = 174835584.

The previous prime is 206271119. The next prime is 206271137. The reversal of 206271121 is 121172602.

It is a happy number.

It is not a de Polignac number, because 206271121 - 2¹ = 206271119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206271092 and 206271101.

It is not an unprimeable number, because it can be changed into a prime (206271181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334005 + ... + 334621.

It is an arithmetic number, because the mean of its divisors is an integer number (14898744).

Almost surely, 2^206271121 is an apocalyptic number.

It is an amenable number.

206271121 is a deficient number, since it is larger than the sum of its proper divisors (32108783).

206271121 is a wasteful number, since it uses less digits than its factorization.

206271121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 206271121 is about 14362.1419363548. The cubic root of 206271121 is about 590.8530425957.

The spelling of 206271121 in words is "two hundred six million, two hundred seventy-one thousand, one hundred twenty-one".