20102100212112 has 40 divisors (see below), whose sum is σ = 53605600569600. Its totient is φ = 6484548455040.

The previous prime is 20102100212111. The next prime is 20102100212123. The reversal of 20102100212112 is 21121200120102.

It is a junction number, because it is equal to n+sod(n) for n = 20102100212091 and 20102100212100.

It is not an unprimeable number, because it can be changed into a prime (20102100212111) 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, 6754736487 + ... + 6754739462.

It is an arithmetic number, because the mean of its divisors is an integer number (1340140014240).

Almost surely, 2^{20102100212112} is an apocalyptic number.

It is an amenable number.

20102100212112 is an abundant number, since it is smaller than the sum of its proper divisors (33503500357488).

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

20102100212112 is a wasteful number, since it uses less digits than its factorization.

20102100212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13509475991 (or 13509475985 counting only the distinct ones).

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

Adding to 20102100212112 its reverse (21121200120102), we get a palindrome (41223300332214).

The spelling of 20102100212112 in words is "twenty trillion, one hundred two billion, one hundred million, two hundred twelve thousand, one hundred twelve".