1112121201999 has 8 divisors (see below), whose sum is σ = 1482853816960. Its totient is φ = 741401360856.

The previous prime is 1112121201953. The next prime is 1112121202033. The reversal of 1112121201999 is 9991021212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112121201999 - 2⁷ = 1112121201871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112121209999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2988427 + ... + 3339900.

It is an arithmetic number, because the mean of its divisors is an integer number (185356727120).

Almost surely, 2^{1112121201999} is an apocalyptic number.

1112121201999 is a deficient number, since it is larger than the sum of its proper divisors (370732614961).

1112121201999 is an equidigital number, since it uses as much as digits as its factorization.

1112121201999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386909.

The product of its (nonzero) digits is 5832, while the sum is 39.

The spelling of 1112121201999 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, two hundred one thousand, nine hundred ninety-nine".