1121002120999 has 2 divisors, whose sum is σ = 1121002121000. Its totient is φ = 1121002120998.

The previous prime is 1121002120993. The next prime is 1121002121021. The reversal of 1121002120999 is 9990212001211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121002120999 - 2¹⁵ = 1121002088231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121002120993) 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, 560501060499 + 560501060500.

It is an arithmetic number, because the mean of its divisors is an integer number (560501060500).

Almost surely, 2^{1121002120999} is an apocalyptic number.

1121002120999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121002120999 is an equidigital number, since it uses as much as digits as its factorization.

1121002120999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 1121002120999 in words is "one trillion, one hundred twenty-one billion, two million, one hundred twenty thousand, nine hundred ninety-nine".