206516122 has 8 divisors (see below), whose sum is σ = 310016916. Its totient is φ = 103177152.

The previous prime is 206516117. The next prime is 206516131. The reversal of 206516122 is 221615602.

It can be written as a sum of positive squares in 2 ways, for example, as 206468161 + 47961 = 14369^2 + 219^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37213 + ... + 42400.

Almost surely, 2^206516122 is an apocalyptic number.

206516122 is a deficient number, since it is larger than the sum of its proper divisors (103500794).

206516122 is a wasteful number, since it uses less digits than its factorization.

206516122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80912.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 206516122 is about 14370.6688083749. The cubic root of 206516122 is about 591.0868809700.

It can be divided in two parts, 20 and 6516122, that multiplied together give a triangular number (130322440 = T₁₆₁₄₄).

The spelling of 206516122 in words is "two hundred six million, five hundred sixteen thousand, one hundred twenty-two".