210122200117 has 2 divisors, whose sum is σ = 210122200118. Its totient is φ = 210122200116.

The previous prime is 210122200081. The next prime is 210122200129. The reversal of 210122200117 is 711002221012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166822416721 + 43299783396 = 408439^2 + 208086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210122200117 is a prime.

It is a super-3 number, since 3×210122200117³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210122200094 and 210122200103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210122200177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061100058 + 105061100059.

It is an arithmetic number, because the mean of its divisors is an integer number (105061100059).

Almost surely, 2^210122200117 is an apocalyptic number.

It is an amenable number.

210122200117 is a deficient number, since it is larger than the sum of its proper divisors (1).

210122200117 is an equidigital number, since it uses as much as digits as its factorization.

210122200117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 210122200117 its reverse (711002221012), we get a palindrome (921124421129).

The spelling of 210122200117 in words is "two hundred ten billion, one hundred twenty-two million, two hundred thousand, one hundred seventeen".