206161122 has 16 divisors (see below), whose sum is σ = 412785792. Its totient is φ = 68643120.

The previous prime is 206161117. The next prime is 206161139. The reversal of 206161122 is 221161602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13393 + ... + 24324.

It is an arithmetic number, because the mean of its divisors is an integer number (25799112).

Almost surely, 2^206161122 is an apocalyptic number.

206161122 is an abundant number, since it is smaller than the sum of its proper divisors (206624670).

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

206161122 is a wasteful number, since it uses less digits than its factorization.

206161122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38633.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 206161122 is about 14358.3119481365. The cubic root of 206161122 is about 590.7479950899.

The spelling of 206161122 in words is "two hundred six million, one hundred sixty-one thousand, one hundred twenty-two".