1112021206 has 4 divisors (see below), whose sum is σ = 1668031812. Its totient is φ = 556010602.

The previous prime is 1112021179. The next prime is 1112021213. The reversal of 1112021206 is 6021202111.

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 1112021206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278005300 + ... + 278005303.

It is an arithmetic number, because the mean of its divisors is an integer number (417007953).

Almost surely, 2^1112021206 is an apocalyptic number.

1112021206 is a deficient number, since it is larger than the sum of its proper divisors (556010606).

1112021206 is an equidigital number, since it uses as much as digits as its factorization.

1112021206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556010605.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1112021206 is about 33346.9819623905. The cubic root of 1112021206 is about 1036.0268791196.

Adding to 1112021206 its reverse (6021202111), we get a palindrome (7133223317).

The spelling of 1112021206 in words is "one billion, one hundred twelve million, twenty-one thousand, two hundred six".