212002221220112 has 20 divisors (see below), whose sum is σ = 410758106411340. Its totient is φ = 106000129243008.

The previous prime is 212002221220109. The next prime is 212002221220183. The reversal of 212002221220112 is 211022122200212.

It can be written as a sum of positive squares in 2 ways, for example, as 5748504940816 + 206253716279296 = 2397604^2 + 14361536^2 .

It is a super-2 number, since 2×212002221220112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59551643 + ... + 63011130.

It is an arithmetic number, because the mean of its divisors is an integer number (20537905320567).

Almost surely, 2^{212002221220112} is an apocalyptic number.

It is an amenable number.

212002221220112 is a deficient number, since it is larger than the sum of its proper divisors (198755885191228).

212002221220112 is a wasteful number, since it uses less digits than its factorization.

212002221220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122670890 (or 122670884 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212002221220112 its reverse (211022122200212), we get a palindrome (423024343420324).

The spelling of 212002221220112 in words is "two hundred twelve trillion, two billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twelve".