210022221102173 has 2 divisors, whose sum is σ = 210022221102174. Its totient is φ = 210022221102172.

The previous prime is 210022221102097. The next prime is 210022221102203. The reversal of 210022221102173 is 371201122220012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190491946741924 + 19530274360249 = 13801882^2 + 4419307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210022221102173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210022221104173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105011110551086 + 105011110551087.

It is an arithmetic number, because the mean of its divisors is an integer number (105011110551087).

Almost surely, 2^{210022221102173} is an apocalyptic number.

It is an amenable number.

210022221102173 is a deficient number, since it is larger than the sum of its proper divisors (1).

210022221102173 is an equidigital number, since it uses as much as digits as its factorization.

210022221102173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 210022221102173 its reverse (371201122220012), we get a palindrome (581223343322185).

The spelling of 210022221102173 in words is "two hundred ten trillion, twenty-two billion, two hundred twenty-one million, one hundred two thousand, one hundred seventy-three".