206775722122 has 4 divisors (see below), whose sum is σ = 310163583186. Its totient is φ = 103387861060.

The previous prime is 206775722113. The next prime is 206775722123. The reversal of 206775722122 is 221227577602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194092232481 + 12683489641 = 440559^2 + 112621^2 .

It is not an unprimeable number, because it can be changed into a prime (206775722123) 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 as a sum of consecutive naturals, namely, 51693930529 + ... + 51693930532.

Almost surely, 2^206775722122 is an apocalyptic number.

206775722122 is a deficient number, since it is larger than the sum of its proper divisors (103387861064).

206775722122 is a wasteful number, since it uses less digits than its factorization.

206775722122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103387861063.

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 206775722122 in words is "two hundred six billion, seven hundred seventy-five million, seven hundred twenty-two thousand, one hundred twenty-two".