2020221199973 has 2 divisors, whose sum is σ = 2020221199974. Its totient is φ = 2020221199972.

The previous prime is 2020221199957. The next prime is 2020221200047. The reversal of 2020221199973 is 3799911220202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1868967878404 + 151253321569 = 1367102^2 + 388913^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020221199973 - 2⁴ = 2020221199957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020221199573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010110599986 + 1010110599987.

It is an arithmetic number, because the mean of its divisors is an integer number (1010110599987).

Almost surely, 2^{2020221199973} is an apocalyptic number.

It is an amenable number.

2020221199973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020221199973 is an equidigital number, since it uses as much as digits as its factorization.

2020221199973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 2020221199973 in words is "two trillion, twenty billion, two hundred twenty-one million, one hundred ninety-nine thousand, nine hundred seventy-three".