16442212122 has 96 divisors (see below), whose sum is σ = 41170671360. Its totient is φ = 4645382400.

The previous prime is 16442212091. The next prime is 16442212169. The reversal of 16442212122 is 22121224461.

It is a happy number.

16442212122 is a `hidden beast` number, since 1 + 6 + 442 + 2 + 1 + 212 + 2 = 666.

It is a super-3 number, since 3×16442212122³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4431204 + ... + 4434912.

It is an arithmetic number, because the mean of its divisors is an integer number (428861160).

Almost surely, 2^16442212122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16442212122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20585335680).

16442212122 is an abundant number, since it is smaller than the sum of its proper divisors (24728459238).

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

16442212122 is a wasteful number, since it uses less digits than its factorization.

16442212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108 (or 4105 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 16442212122 its reverse (22121224461), we get a palindrome (38563436583).

The spelling of 16442212122 in words is "sixteen billion, four hundred forty-two million, two hundred twelve thousand, one hundred twenty-two".