20012111101112 has 64 divisors (see below), whose sum is σ = 42228578810880. Its totient is φ = 8829611747712.

The previous prime is 20012111101111. The next prime is 20012111101121. The reversal of 20012111101112 is 21110111121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012111101111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47395988 + ... + 47816355.

It is an arithmetic number, because the mean of its divisors is an integer number (659821543920).

Almost surely, 2^{20012111101112} is an apocalyptic number.

It is an amenable number.

20012111101112 is an abundant number, since it is smaller than the sum of its proper divisors (22216467709768).

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

20012111101112 is a wasteful number, since it uses less digits than its factorization.

20012111101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95212452 (or 95212448 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20012111101112 its reverse (21110111121002), we get a palindrome (41122222222114).

The spelling of 20012111101112 in words is "twenty trillion, twelve billion, one hundred eleven million, one hundred one thousand, one hundred twelve".