1121219993617 has 2 divisors, whose sum is σ = 1121219993618. Its totient is φ = 1121219993616.

The previous prime is 1121219993611. The next prime is 1121219993623. The reversal of 1121219993617 is 7163999121211.

It is a balanced prime because it is at equal distance from previous prime (1121219993611) and next prime (1121219993623).

It can be written as a sum of positive squares in only one way, i.e., 576629128321 + 544590865296 = 759361^2 + 737964^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121219993617 - 2¹⁹ = 1121219469329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121219993611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560609996808 + 560609996809.

It is an arithmetic number, because the mean of its divisors is an integer number (560609996809).

Almost surely, 2^{1121219993617} is an apocalyptic number.

It is an amenable number.

1121219993617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121219993617 is an equidigital number, since it uses as much as digits as its factorization.

1121219993617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 52.

The spelling of 1121219993617 in words is "one trillion, one hundred twenty-one billion, two hundred nineteen million, nine hundred ninety-three thousand, six hundred seventeen".