210212222111 has 2 divisors, whose sum is σ = 210212222112. Its totient is φ = 210212222110.

The previous prime is 210212222083. The next prime is 210212222197. The reversal of 210212222111 is 111222212012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210212222111 - 2¹⁴ = 210212205727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210212222111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210212222411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105106111055 + 105106111056.

It is an arithmetic number, because the mean of its divisors is an integer number (105106111056).

Almost surely, 2^210212222111 is an apocalyptic number.

210212222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

210212222111 is an equidigital number, since it uses as much as digits as its factorization.

210212222111 is an evil number, because the sum of its binary digits is even.

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

Adding to 210212222111 its reverse (111222212012), we get a palindrome (321434434123).

The spelling of 210212222111 in words is "two hundred ten billion, two hundred twelve million, two hundred twenty-two thousand, one hundred eleven".