16122001211611 has 4 divisors (see below), whose sum is σ = 16122437225800. Its totient is φ = 16121565197424.

The previous prime is 16122001211593. The next prime is 16122001211629. The reversal of 16122001211611 is 11611210022161.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (16122001211593) and next prime (16122001211629).

It is a cyclic number.

It is not a de Polignac number, because 16122001211611 - 2¹¹ = 16122001209563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16122001211681) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 217951626 + ... + 218025583.

It is an arithmetic number, because the mean of its divisors is an integer number (4030609306450).

Almost surely, 2^{16122001211611} is an apocalyptic number.

16122001211611 is a deficient number, since it is larger than the sum of its proper divisors (436014189).

16122001211611 is an equidigital number, since it uses as much as digits as its factorization.

16122001211611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436014188.

The product of its (nonzero) digits is 288, while the sum is 25.

Adding to 16122001211611 its reverse (11611210022161), we get a palindrome (27733211233772).

The spelling of 16122001211611 in words is "sixteen trillion, one hundred twenty-two billion, one million, two hundred eleven thousand, six hundred eleven".