206958222220 has 24 divisors (see below), whose sum is σ = 440565862464. Its totient is φ = 81649270656.

The previous prime is 206958222217. The next prime is 206958222221. The reversal of 206958222220 is 22222859602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (206958222221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70874644 + ... + 70877563.

It is an arithmetic number, because the mean of its divisors is an integer number (18356910936).

Almost surely, 2^206958222220 is an apocalyptic number.

206958222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206958222220 is an abundant number, since it is smaller than the sum of its proper divisors (233607640244).

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

206958222220 is a wasteful number, since it uses less digits than its factorization.

206958222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141752289 (or 141752287 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 206958222220 in words is "two hundred six billion, nine hundred fifty-eight million, two hundred twenty-two thousand, two hundred twenty".