16012122 has 48 divisors (see below), whose sum is σ = 37674720. Its totient is φ = 4523232.

The previous prime is 16012121. The next prime is 16012153. The reversal of 16012122 is 22121061.

It is not an unprimeable number, because it can be changed into a prime (16012121) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31204 + ... + 31712.

It is an arithmetic number, because the mean of its divisors is an integer number (784890).

Almost surely, 2^16012122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16012122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18837360).

16012122 is an abundant number, since it is smaller than the sum of its proper divisors (21662598).

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

16012122 is a wasteful number, since it uses less digits than its factorization.

16012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 16012122 is about 4001.5149631108. The cubic root of 16012122 is about 252.0478304272.

Adding to 16012122 its reverse (22121061), we get a palindrome (38133183).

The spelling of 16012122 in words is "sixteen million, twelve thousand, one hundred twenty-two".