201222021210017 has 2 divisors, whose sum is σ = 201222021210018. Its totient is φ = 201222021210016.

The previous prime is 201222021209969. The next prime is 201222021210113. The reversal of 201222021210017 is 710012120222102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162729414823936 + 38492606386081 = 12756544^2 + 6204241^2 .

It is a cyclic number.

It is not a de Polignac number, because 201222021210017 - 2²² = 201222017015713 is a prime.

It is a super-2 number, since 2×201222021210017² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201222021209974 and 201222021210001.

It is not a weakly prime, because it can be changed into another prime (201222021210317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100611010605008 + 100611010605009.

It is an arithmetic number, because the mean of its divisors is an integer number (100611010605009).

Almost surely, 2^{201222021210017} is an apocalyptic number.

It is an amenable number.

201222021210017 is a deficient number, since it is larger than the sum of its proper divisors (1).

201222021210017 is an equidigital number, since it uses as much as digits as its factorization.

201222021210017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 201222021210017 its reverse (710012120222102), we get a palindrome (911234141432119).

The spelling of 201222021210017 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-one million, two hundred ten thousand, seventeen".