1121616206 has 16 divisors (see below), whose sum is σ = 1760806944. Its totient is φ = 534825984.

The previous prime is 1121616193. The next prime is 1121616217. The reversal of 1121616206 is 6026161211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20675 + ... + 51678.

It is an arithmetic number, because the mean of its divisors is an integer number (110050434).

Almost surely, 2^1121616206 is an apocalyptic number.

1121616206 is a deficient number, since it is larger than the sum of its proper divisors (639190738).

1121616206 is a wasteful number, since it uses less digits than its factorization.

1121616206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72715.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1121616206 is about 33490.5390520965. The cubic root of 1121616206 is about 1038.9981124310.

Adding to 1121616206 its reverse (6026161211), we get a palindrome (7147777417).

The spelling of 1121616206 in words is "one billion, one hundred twenty-one million, six hundred sixteen thousand, two hundred six".