1020221946673 has 2 divisors, whose sum is σ = 1020221946674. Its totient is φ = 1020221946672.

The previous prime is 1020221946649. The next prime is 1020221946697. The reversal of 1020221946673 is 3766491220201.

It is a balanced prime because it is at equal distance from previous prime (1020221946649) and next prime (1020221946697).

It can be written as a sum of positive squares in only one way, i.e., 965754321984 + 54467624689 = 982728^2 + 233383^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020221946673 - 2¹⁷ = 1020221815601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020221946173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510110973336 + 510110973337.

It is an arithmetic number, because the mean of its divisors is an integer number (510110973337).

Almost surely, 2^{1020221946673} is an apocalyptic number.

It is an amenable number.

1020221946673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020221946673 is an equidigital number, since it uses as much as digits as its factorization.

1020221946673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 1020221946673 in words is "one trillion, twenty billion, two hundred twenty-one million, nine hundred forty-six thousand, six hundred seventy-three".