206122412263420 has 48 divisors (see below), whose sum is σ = 438804072822528. Its totient is φ = 81316291530240.

The previous prime is 206122412263343. The next prime is 206122412263433. The reversal of 206122412263420 is 24362214221602.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 206122412263420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34064650 + ... + 39656590.

It is an arithmetic number, because the mean of its divisors is an integer number (9141751517136).

Almost surely, 2^{206122412263420} is an apocalyptic number.

206122412263420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206122412263420 is an abundant number, since it is smaller than the sum of its proper divisors (232681660559108).

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

206122412263420 is a wasteful number, since it uses less digits than its factorization.

206122412263420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617270 (or 5617268 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 206122412263420 in words is "two hundred six trillion, one hundred twenty-two billion, four hundred twelve million, two hundred sixty-three thousand, four hundred twenty".