211202000112221 has 2 divisors, whose sum is σ = 211202000112222. Its totient is φ = 211202000112220.

The previous prime is 211202000112203. The next prime is 211202000112223. The reversal of 211202000112221 is 122211000202112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200872936891225 + 10329063220996 = 14172965^2 + 3213886^2 .

It is a cyclic number.

It is not a de Polignac number, because 211202000112221 - 2¹⁸ = 211201999850077 is a prime.

Together with 211202000112223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211202000112221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211202000112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105601000056110 + 105601000056111.

It is an arithmetic number, because the mean of its divisors is an integer number (105601000056111).

Almost surely, 2^{211202000112221} is an apocalyptic number.

It is an amenable number.

211202000112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

211202000112221 is an equidigital number, since it uses as much as digits as its factorization.

211202000112221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211202000112221 its reverse (122211000202112), we get a palindrome (333413000314333).

The spelling of 211202000112221 in words is "two hundred eleven trillion, two hundred two billion, one hundred twelve thousand, two hundred twenty-one".