1220202065806 has 16 divisors (see below), whose sum is σ = 1834926713280. Its totient is φ = 608560070400.

The previous prime is 1220202065759. The next prime is 1220202065837. The reversal of 1220202065806 is 6085602020221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11371606 + ... + 11478406.

It is an arithmetic number, because the mean of its divisors is an integer number (114682919580).

Almost surely, 2^{1220202065806} is an apocalyptic number.

1220202065806 is a deficient number, since it is larger than the sum of its proper divisors (614724647474).

1220202065806 is a wasteful number, since it uses less digits than its factorization.

1220202065806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121179.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 1220202065806 in words is "one trillion, two hundred twenty billion, two hundred two million, sixty-five thousand, eight hundred six".