20111103220112 has 40 divisors (see below), whose sum is σ = 41105816752800. Its totient is φ = 9505466664192.

The previous prime is 20111103220111. The next prime is 20111103220147. The reversal of 20111103220112 is 21102230111102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20111103220111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72240662 + ... + 72518517.

It is an arithmetic number, because the mean of its divisors is an integer number (1027645418820).

Almost surely, 2^{20111103220112} is an apocalyptic number.

It is an amenable number.

20111103220112 is an abundant number, since it is smaller than the sum of its proper divisors (20994713532688).

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

20111103220112 is a wasteful number, since it uses less digits than its factorization.

20111103220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144759663 (or 144759657 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20111103220112 its reverse (21102230111102), we get a palindrome (41213333331214).

The spelling of 20111103220112 in words is "twenty trillion, one hundred eleven billion, one hundred three million, two hundred twenty thousand, one hundred twelve".