1220222103817 has 2 divisors, whose sum is σ = 1220222103818. Its totient is φ = 1220222103816.

The previous prime is 1220222103809. The next prime is 1220222103899. The reversal of 1220222103817 is 7183012220221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 733393555456 + 486828548361 = 856384^2 + 697731^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220222103817 - 2³ = 1220222103809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220222101817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610111051908 + 610111051909.

It is an arithmetic number, because the mean of its divisors is an integer number (610111051909).

Almost surely, 2^{1220222103817} is an apocalyptic number.

It is an amenable number.

1220222103817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220222103817 is an equidigital number, since it uses as much as digits as its factorization.

1220222103817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 1220222103817 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred three thousand, eight hundred seventeen".