206202220 has 48 divisors (see below), whose sum is σ = 496254528. Its totient is φ = 70502400.

The previous prime is 206202211. The next prime is 206202229. The reversal of 206202220 is 22202602.

It is an interprime number because it is at equal distance from previous prime (206202211) and next prime (206202229).

It is a junction number, because it is equal to n+sod(n) for n = 206202194 and 206202203.

It is not an unprimeable number, because it can be changed into a prime (206202229) 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, 54304 + ... + 57976.

It is an arithmetic number, because the mean of its divisors is an integer number (10338636).

Almost surely, 2^206202220 is an apocalyptic number.

206202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206202220 is an abundant number, since it is smaller than the sum of its proper divisors (290052308).

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

206202220 is a wasteful number, since it uses less digits than its factorization.

206202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090 (or 4088 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 206202220 is about 14359.7430339125. The cubic root of 206202220 is about 590.7872474762.

Adding to 206202220 its reverse (22202602), we get a palindrome (228404822).

The spelling of 206202220 in words is "two hundred six million, two hundred two thousand, two hundred twenty".