1112001221999 has 2 divisors, whose sum is σ = 1112001222000. Its totient is φ = 1112001221998.

The previous prime is 1112001221993. The next prime is 1112001222023. The reversal of 1112001221999 is 9991221002111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1112001221999 - 2³² = 1107706254703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112001221993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556000610999 + 556000611000.

It is an arithmetic number, because the mean of its divisors is an integer number (556000611000).

Almost surely, 2^{1112001221999} is an apocalyptic number.

1112001221999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112001221999 is an equidigital number, since it uses as much as digits as its factorization.

1112001221999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 1112001221999 in words is "one trillion, one hundred twelve billion, one million, two hundred twenty-one thousand, nine hundred ninety-nine".