210222110120989 has 2 divisors, whose sum is σ = 210222110120990. Its totient is φ = 210222110120988.

The previous prime is 210222110120987. The next prime is 210222110121071. The reversal of 210222110120989 is 989021011222012.

210222110120989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172887443876889 + 37334666244100 = 13148667^2 + 6110210^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222110120989 - 2¹ = 210222110120987 is a prime.

Together with 210222110120987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210222110120987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111055060494 + 105111055060495.

It is an arithmetic number, because the mean of its divisors is an integer number (105111055060495).

Almost surely, 2^{210222110120989} is an apocalyptic number.

It is an amenable number.

210222110120989 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222110120989 is an equidigital number, since it uses as much as digits as its factorization.

210222110120989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 210222110120989 in words is "two hundred ten trillion, two hundred twenty-two billion, one hundred ten million, one hundred twenty thousand, nine hundred eighty-nine".