1022212222117 has 2 divisors, whose sum is σ = 1022212222118. Its totient is φ = 1022212222116.

The previous prime is 1022212222091. The next prime is 1022212222133. The reversal of 1022212222117 is 7112222122201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 845312909281 + 176899312836 = 919409^2 + 420594^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022212222117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022212222091 and 1022212222100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022212222817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511106111058 + 511106111059.

It is an arithmetic number, because the mean of its divisors is an integer number (511106111059).

Almost surely, 2^{1022212222117} is an apocalyptic number.

It is an amenable number.

1022212222117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022212222117 is an equidigital number, since it uses as much as digits as its factorization.

1022212222117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 1022212222117 its reverse (7112222122201), we get a palindrome (8134434344318).

The spelling of 1022212222117 in words is "one trillion, twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred seventeen".