20011100222112 has 48 divisors (see below), whose sum is σ = 54813013657920. Its totient is φ = 6380350794752.

The previous prime is 20011100222111. The next prime is 20011100222117. The reversal of 20011100222112 is 21122200111002.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 20011100222091 and 20011100222100.

It is not an unprimeable number, because it can be changed into a prime (20011100222111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4531496937 + ... + 4531501352.

It is an arithmetic number, because the mean of its divisors is an integer number (1141937784540).

Almost surely, 2^{20011100222112} is an apocalyptic number.

It is an amenable number.

20011100222112 is an abundant number, since it is smaller than the sum of its proper divisors (34801913435808).

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

20011100222112 is a wasteful number, since it uses less digits than its factorization.

20011100222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9062998325 (or 9062998317 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20011100222112 its reverse (21122200111002), we get a palindrome (41133300333114).

The spelling of 20011100222112 in words is "twenty trillion, eleven billion, one hundred million, two hundred twenty-two thousand, one hundred twelve".