21202000100093 has 2 divisors, whose sum is σ = 21202000100094. Its totient is φ = 21202000100092.

The previous prime is 21202000100087. The next prime is 21202000100111. The reversal of 21202000100093 is 39000100020212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17326464525049 + 3875535575044 = 4162507^2 + 1968638^2 .

It is a cyclic number.

It is not a de Polignac number, because 21202000100093 - 2²² = 21201995905789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202000100003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601000050046 + 10601000050047.

It is an arithmetic number, because the mean of its divisors is an integer number (10601000050047).

Almost surely, 2^{21202000100093} is an apocalyptic number.

It is an amenable number.

21202000100093 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202000100093 is an equidigital number, since it uses as much as digits as its factorization.

21202000100093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 21202000100093 in words is "twenty-one trillion, two hundred two billion, one hundred thousand, ninety-three".