212221200109073 has 2 divisors, whose sum is σ = 212221200109074. Its totient is φ = 212221200109072.

The previous prime is 212221200109067. The next prime is 212221200109099. The reversal of 212221200109073 is 370901002122212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206261098174849 + 5960101934224 = 14361793^2 + 2441332^2 .

It is a cyclic number.

It is not a de Polignac number, because 212221200109073 - 2⁴ = 212221200109057 is a prime.

It is not a weakly prime, because it can be changed into another prime (212221200189073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110600054536 + 106110600054537.

It is an arithmetic number, because the mean of its divisors is an integer number (106110600054537).

Almost surely, 2^{212221200109073} is an apocalyptic number.

It is an amenable number.

212221200109073 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221200109073 is an equidigital number, since it uses as much as digits as its factorization.

212221200109073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 212221200109073 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred million, one hundred nine thousand, seventy-three".