211210101222073 has 2 divisors, whose sum is σ = 211210101222074. Its totient is φ = 211210101222072.

The previous prime is 211210101222019. The next prime is 211210101222103. The reversal of 211210101222073 is 370222101012112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154879717524624 + 56330383697449 = 12445068^2 + 7505357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211210101222073 is a prime.

It is not a weakly prime, because it can be changed into another prime (211210171222073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605050611036 + 105605050611037.

It is an arithmetic number, because the mean of its divisors is an integer number (105605050611037).

Almost surely, 2^{211210101222073} is an apocalyptic number.

It is an amenable number.

211210101222073 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210101222073 is an equidigital number, since it uses as much as digits as its factorization.

211210101222073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 211210101222073 its reverse (370222101012112), we get a palindrome (581432202234185).

The spelling of 211210101222073 in words is "two hundred eleven trillion, two hundred ten billion, one hundred one million, two hundred twenty-two thousand, seventy-three".