1200002102206 has 4 divisors (see below), whose sum is σ = 1800003153312. Its totient is φ = 600001051102.

The previous prime is 1200002102191. The next prime is 1200002102209. The reversal of 1200002102206 is 6022012000021.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1200002102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200002102209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300000525550 + ... + 300000525553.

It is an arithmetic number, because the mean of its divisors is an integer number (450000788328).

Almost surely, 2^{1200002102206} is an apocalyptic number.

1200002102206 is a deficient number, since it is larger than the sum of its proper divisors (600001051106).

1200002102206 is an equidigital number, since it uses as much as digits as its factorization.

1200002102206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600001051105.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1200002102206 its reverse (6022012000021), we get a palindrome (7222014102227).

The spelling of 1200002102206 in words is "one trillion, two hundred billion, two million, one hundred two thousand, two hundred six".