1612012122 has 96 divisors (see below), whose sum is σ = 4122188928. Its totient is φ = 445713408.

The previous prime is 1612012111. The next prime is 1612012123. The reversal of 1612012122 is 2212102161.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1612012095 and 1612012104.

It is not an unprimeable number, because it can be changed into a prime (1612012123) 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 47 ways as a sum of consecutive naturals, for example, 610918 + ... + 613550.

It is an arithmetic number, because the mean of its divisors is an integer number (42939468).

Almost surely, 2^1612012122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1612012122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2061094464).

1612012122 is an abundant number, since it is smaller than the sum of its proper divisors (2510176806).

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

1612012122 is a wasteful number, since it uses less digits than its factorization.

1612012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2801 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1612012122 is about 40149.8707594433. The cubic root of 1612012122 is about 1172.5267723469.

Adding to 1612012122 its reverse (2212102161), we get a palindrome (3824114283).

The spelling of 1612012122 in words is "one billion, six hundred twelve million, twelve thousand, one hundred twenty-two".