1217112006 has 16 divisors (see below), whose sum is σ = 2655517248. Its totient is φ = 368821800.

The previous prime is 1217111983. The next prime is 1217112007. The reversal of 1217112006 is 6002117121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217112007) 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, 9220480 + ... + 9220611.

It is an arithmetic number, because the mean of its divisors is an integer number (165969828).

Almost surely, 2^1217112006 is an apocalyptic number.

1217112006 is an abundant number, since it is smaller than the sum of its proper divisors (1438405242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1217112006 is a wasteful number, since it uses less digits than its factorization.

1217112006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441107.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1217112006 is about 34887.1323843047. The cubic root of 1217112006 is about 1067.6859198614.

Adding to 1217112006 its reverse (6002117121), we get a palindrome (7219229127).

The spelling of 1217112006 in words is "one billion, two hundred seventeen million, one hundred twelve thousand, six".