210220102211993 has 2 divisors, whose sum is σ = 210220102211994. Its totient is φ = 210220102211992.

The previous prime is 210220102211927. The next prime is 210220102212031. The reversal of 210220102211993 is 399112201022012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185487702255769 + 24732399956224 = 13619387^2 + 4973168^2 .

It is a cyclic number.

It is not a de Polignac number, because 210220102211993 - 2³⁶ = 210151382735257 is a prime.

It is not a weakly prime, because it can be changed into another prime (210220102211893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110051105996 + 105110051105997.

It is an arithmetic number, because the mean of its divisors is an integer number (105110051105997).

Almost surely, 2^{210220102211993} is an apocalyptic number.

It is an amenable number.

210220102211993 is a deficient number, since it is larger than the sum of its proper divisors (1).

210220102211993 is an equidigital number, since it uses as much as digits as its factorization.

210220102211993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 210220102211993 in words is "two hundred ten trillion, two hundred twenty billion, one hundred two million, two hundred eleven thousand, nine hundred ninety-three".