210102220011911 has 2 divisors, whose sum is σ = 210102220011912. Its totient is φ = 210102220011910.

The previous prime is 210102220011881. The next prime is 210102220011913. The reversal of 210102220011911 is 119110022201012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210102220011911 - 2¹⁸ = 210102219749767 is a prime.

Together with 210102220011913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210102220011913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051110005955 + 105051110005956.

It is an arithmetic number, because the mean of its divisors is an integer number (105051110005956).

Almost surely, 2^{210102220011911} is an apocalyptic number.

210102220011911 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102220011911 is an equidigital number, since it uses as much as digits as its factorization.

210102220011911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 210102220011911 its reverse (119110022201012), we get a palindrome (329212242212923).

The spelling of 210102220011911 in words is "two hundred ten trillion, one hundred two billion, two hundred twenty million, eleven thousand, nine hundred eleven".