210211212212189 has 2 divisors, whose sum is σ = 210211212212190. Its totient is φ = 210211212212188.

The previous prime is 210211212212107. The next prime is 210211212212201. The reversal of 210211212212189 is 981212212112012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203329205016025 + 6882007196164 = 14259355^2 + 2623358^2 .

It is a cyclic number.

It is not a de Polignac number, because 210211212212189 - 2⁸ = 210211212211933 is a prime.

It is a super-4 number, since 4×210211212212189⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210211212212489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105606106094 + 105105606106095.

It is an arithmetic number, because the mean of its divisors is an integer number (105105606106095).

Almost surely, 2^{210211212212189} is an apocalyptic number.

It is an amenable number.

210211212212189 is a deficient number, since it is larger than the sum of its proper divisors (1).

210211212212189 is an equidigital number, since it uses as much as digits as its factorization.

210211212212189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 35.

The spelling of 210211212212189 in words is "two hundred ten trillion, two hundred eleven billion, two hundred twelve million, two hundred twelve thousand, one hundred eighty-nine".