1200000000199 has 16 divisors (see below), whose sum is σ = 1611188812800. Its totient is φ = 863136862560.

The previous prime is 1200000000187. The next prime is 1200000000203. The reversal of 1200000000199 is 9910000000021.

It is not a de Polignac number, because 1200000000199 - 2¹¹ = 1199999998151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200000000119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599399599 + ... + 599401600.

It is an arithmetic number, because the mean of its divisors is an integer number (100699300800).

Almost surely, 2^{1200000000199} is an apocalyptic number.

1200000000199 is a deficient number, since it is larger than the sum of its proper divisors (411188812601).

1200000000199 is a wasteful number, since it uses less digits than its factorization.

1200000000199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198801230.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 1200000000199 in words is "one trillion, two hundred billion, one hundred ninety-nine", and thus it is an aban number.