20020100220973 has 2 divisors, whose sum is σ = 20020100220974. Its totient is φ = 20020100220972.

The previous prime is 20020100220917. The next prime is 20020100221087. The reversal of 20020100220973 is 37902200102002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11829073392964 + 8191026828009 = 3439342^2 + 2861997^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020100220973 - 2²⁵ = 20020066666541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020100220173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010050110486 + 10010050110487.

It is an arithmetic number, because the mean of its divisors is an integer number (10010050110487).

Almost surely, 2^{20020100220973} is an apocalyptic number.

It is an amenable number.

20020100220973 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020100220973 is an equidigital number, since it uses as much as digits as its factorization.

20020100220973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 20020100220973 its reverse (37902200102002), we get a palindrome (57922300322975).

The spelling of 20020100220973 in words is "twenty trillion, twenty billion, one hundred million, two hundred twenty thousand, nine hundred seventy-three".