1202212220017 has 2 divisors, whose sum is σ = 1202212220018. Its totient is φ = 1202212220016.

The previous prime is 1202212219933. The next prime is 1202212220039. The reversal of 1202212220017 is 7100222122021.

It is an a-pointer prime, because the next prime (1202212220039) can be obtained adding 1202212220017 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1200687786081 + 1524433936 = 1095759^2 + 39044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202212220017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202212220017.

It is not a weakly prime, because it can be changed into another prime (1202212221017) 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, 601106110008 + 601106110009.

It is an arithmetic number, because the mean of its divisors is an integer number (601106110009).

Almost surely, 2^{1202212220017} is an apocalyptic number.

It is an amenable number.

1202212220017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202212220017 is an equidigital number, since it uses as much as digits as its factorization.

1202212220017 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 22.

Adding to 1202212220017 its reverse (7100222122021), we get a palindrome (8302434342038).

The spelling of 1202212220017 in words is "one trillion, two hundred two billion, two hundred twelve million, two hundred twenty thousand, seventeen".