1200111206 has 16 divisors (see below), whose sum is σ = 2112938016. Its totient is φ = 500432256.

The previous prime is 1200111203. The next prime is 1200111223. The reversal of 1200111206 is 6021110021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200111203) 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, 1157891 + ... + 1158926.

It is an arithmetic number, because the mean of its divisors is an integer number (132058626).

Almost surely, 2^1200111206 is an apocalyptic number.

1200111206 is a deficient number, since it is larger than the sum of its proper divisors (912826810).

1200111206 is a wasteful number, since it uses less digits than its factorization.

1200111206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316863.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1200111206 is about 34642.6212345429. The cubic root of 1200111206 is about 1062.6913942822.

Adding to 1200111206 its reverse (6021110021), we get a palindrome (7221221227).

The spelling of 1200111206 in words is "one billion, two hundred million, one hundred eleven thousand, two hundred six".