20102020121112 has 64 divisors (see below), whose sum is σ = 50509373472000. Its totient is φ = 6666766001280.

The previous prime is 20102020121111. The next prime is 20102020121119. The reversal of 20102020121112 is 21112102020102.

It is a junction number, because it is equal to n+sod(n) for n = 20102020121091 and 20102020121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102020121111) 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 15 ways as a sum of consecutive naturals, for example, 181418287 + ... + 181529057.

It is an arithmetic number, because the mean of its divisors is an integer number (789208960500).

Almost surely, 2^{20102020121112} is an apocalyptic number.

It is an amenable number.

20102020121112 is an abundant number, since it is smaller than the sum of its proper divisors (30407353350888).

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

20102020121112 is a wasteful number, since it uses less digits than its factorization.

20102020121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148976 (or 148972 counting only the distinct ones).

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

Adding to 20102020121112 its reverse (21112102020102), we get a palindrome (41214122141214).

The spelling of 20102020121112 in words is "twenty trillion, one hundred two billion, twenty million, one hundred twenty-one thousand, one hundred twelve".