1222110199979 has 2 divisors, whose sum is σ = 1222110199980. Its totient is φ = 1222110199978.

The previous prime is 1222110199967. The next prime is 1222110200011. The reversal of 1222110199979 is 9799910112221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222110199979 - 2⁴⁰ = 122598572203 is a prime.

It is a super-2 number, since 2×1222110199979² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222110199979.

It is not a weakly prime, because it can be changed into another prime (1222110499979) 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, 611055099989 + 611055099990.

It is an arithmetic number, because the mean of its divisors is an integer number (611055099990).

Almost surely, 2^{1222110199979} is an apocalyptic number.

1222110199979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222110199979 is an equidigital number, since it uses as much as digits as its factorization.

1222110199979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 53.

The spelling of 1222110199979 in words is "one trillion, two hundred twenty-two billion, one hundred ten million, one hundred ninety-nine thousand, nine hundred seventy-nine".