1200100999999 has 8 divisors (see below), whose sum is σ = 1314179044992. Its totient is φ = 1086852614040.

The previous prime is 1200100999991. The next prime is 1200101000023. The reversal of 1200100999999 is 9999990010021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200100999999 - 2³ = 1200100999991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200100999991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207411729 + ... + 207417514.

It is an arithmetic number, because the mean of its divisors is an integer number (164272380624).

Almost surely, 2^{1200100999999} is an apocalyptic number.

1200100999999 is a deficient number, since it is larger than the sum of its proper divisors (114078044993).

1200100999999 is a wasteful number, since it uses less digits than its factorization.

1200100999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414829517.

The product of its (nonzero) digits is 1062882, while the sum is 58.

The spelling of 1200100999999 in words is "one trillion, two hundred billion, one hundred million, nine hundred ninety-nine thousand, nine hundred ninety-nine".