1200220023859 has 2 divisors, whose sum is σ = 1200220023860. Its totient is φ = 1200220023858.

The previous prime is 1200220023839. The next prime is 1200220023881. The reversal of 1200220023859 is 9583200220021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200220023859 - 2¹¹ = 1200220021811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200220023809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600110011929 + 600110011930.

It is an arithmetic number, because the mean of its divisors is an integer number (600110011930).

Almost surely, 2^{1200220023859} is an apocalyptic number.

1200220023859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200220023859 is an equidigital number, since it uses as much as digits as its factorization.

1200220023859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 1200220023859 in words is "one trillion, two hundred billion, two hundred twenty million, twenty-three thousand, eight hundred fifty-nine".