206506122 has 16 divisors (see below), whose sum is σ = 414972192. Its totient is φ = 68508720.

The previous prime is 206506099. The next prime is 206506141. The reversal of 206506122 is 221605602.

It is a junction number, because it is equal to n+sod(n) for n = 206506092 and 206506101.

It is an unprimeable number.

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, 80293 + ... + 82824.

It is an arithmetic number, because the mean of its divisors is an integer number (25935762).

Almost surely, 2^206506122 is an apocalyptic number.

206506122 is an abundant number, since it is smaller than the sum of its proper divisors (208466070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206506122 is a wasteful number, since it uses less digits than its factorization.

206506122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163333.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 206506122 is about 14370.3208732443. The cubic root of 206506122 is about 591.0773402068.

The spelling of 206506122 in words is "two hundred six million, five hundred six thousand, one hundred twenty-two".