2117220561106 has 16 divisors (see below), whose sum is σ = 3629639280960. Its totient is φ = 907350660720.

The previous prime is 2117220561089. The next prime is 2117220561119. The reversal of 2117220561106 is 6011650227112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2017380 + ... + 2881711.

It is an arithmetic number, because the mean of its divisors is an integer number (226852455060).

Almost surely, 2^{2117220561106} is an apocalyptic number.

2117220561106 is a deficient number, since it is larger than the sum of its proper divisors (1512418719854).

2117220561106 is a wasteful number, since it uses less digits than its factorization.

2117220561106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4929969.

The product of its (nonzero) digits is 10080, while the sum is 34.

Adding to 2117220561106 its reverse (6011650227112), we get a palindrome (8128870788218).

The spelling of 2117220561106 in words is "two trillion, one hundred seventeen billion, two hundred twenty million, five hundred sixty-one thousand, one hundred six".