1200001000208 has 80 divisors (see below), whose sum is σ = 2365031961600. Its totient is φ = 589752213120.

The previous prime is 1200001000207. The next prime is 1200001000223. The reversal of 1200001000208 is 8020001000021.

It is a junction number, because it is equal to n+sod(n) for n = 1200001000192 and 1200001000201.

It is not an unprimeable number, because it can be changed into a prime (1200001000207) 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, 220951253 + ... + 220956683.

It is an arithmetic number, because the mean of its divisors is an integer number (29562899520).

Almost surely, 2^{1200001000208} is an apocalyptic number.

It is an amenable number.

1200001000208 is a deficient number, since it is larger than the sum of its proper divisors (1165030961392).

1200001000208 is a wasteful number, since it uses less digits than its factorization.

1200001000208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340 (or 6334 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200001000208 its reverse (8020001000021), we get a palindrome (9220002000229).

The spelling of 1200001000208 in words is "one trillion, two hundred billion, one million, two hundred eight", and thus it is an aban number.