20112221022112 has 48 divisors (see below), whose sum is σ = 39991032668160. Its totient is φ = 9956098914048.

The previous prime is 20112221022031. The next prime is 20112221022121. The reversal of 20112221022112 is 21122012221102.

It is a self number, because there is not a number n which added to its sum of digits gives 20112221022112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3219183 + ... + 7112494.

It is an arithmetic number, because the mean of its divisors is an integer number (833146513920).

Almost surely, 2^{20112221022112} is an apocalyptic number.

It is an amenable number.

20112221022112 is a deficient number, since it is larger than the sum of its proper divisors (19878811646048).

20112221022112 is a wasteful number, since it uses less digits than its factorization.

20112221022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332293 (or 10332285 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20112221022112 its reverse (21122012221102), we get a palindrome (41234233243214).

The spelling of 20112221022112 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-one million, twenty-two thousand, one hundred twelve".