1120221220991 has 2 divisors, whose sum is σ = 1120221220992. Its totient is φ = 1120221220990.

The previous prime is 1120221220919. The next prime is 1120221221129. The reversal of 1120221220991 is 1990221220211.

Together with previous prime (1120221220919) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1120221220991 - 2¹⁴ = 1120221204607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120221220901) 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, 560110610495 + 560110610496.

It is an arithmetic number, because the mean of its divisors is an integer number (560110610496).

Almost surely, 2^{1120221220991} is an apocalyptic number.

1120221220991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120221220991 is an equidigital number, since it uses as much as digits as its factorization.

1120221220991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 1120221220991 in words is "one trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty thousand, nine hundred ninety-one".