100220019973 has 2 divisors, whose sum is σ = 100220019974. Its totient is φ = 100220019972.

The previous prime is 100220019937. The next prime is 100220020031. The reversal of 100220019973 is 379910022001.

It is a happy number.

Together with previous prime (100220019937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70986543489 + 29233476484 = 266433^2 + 170978^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220019973 - 2²⁵ = 100186465541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100220019073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110009986 + 50110009987.

It is an arithmetic number, because the mean of its divisors is an integer number (50110009987).

Almost surely, 2^100220019973 is an apocalyptic number.

It is an amenable number.

100220019973 is a deficient number, since it is larger than the sum of its proper divisors (1).

100220019973 is an equidigital number, since it uses as much as digits as its factorization.

100220019973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The spelling of 100220019973 in words is "one hundred billion, two hundred twenty million, nineteen thousand, nine hundred seventy-three".