210022120169 has 2 divisors, whose sum is σ = 210022120170. Its totient is φ = 210022120168.

The previous prime is 210022120159. The next prime is 210022120183. The reversal of 210022120169 is 961021220012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108794425600 + 101227694569 = 329840^2 + 318163^2 .

It is a cyclic number.

It is not a de Polignac number, because 210022120169 - 2⁴ = 210022120153 is a prime.

It is a super-2 number, since 2×210022120169² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (210022120159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105011060084 + 105011060085.

It is an arithmetic number, because the mean of its divisors is an integer number (105011060085).

Almost surely, 2^210022120169 is an apocalyptic number.

It is an amenable number.

210022120169 is a deficient number, since it is larger than the sum of its proper divisors (1).

210022120169 is an equidigital number, since it uses as much as digits as its factorization.

210022120169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 210022120169 in words is "two hundred ten billion, twenty-two million, one hundred twenty thousand, one hundred sixty-nine".