20120101020112 has 80 divisors (see below), whose sum is σ = 39635985134592. Its totient is φ = 9892609914240.

The previous prime is 20120101020037. The next prime is 20120101020113. The reversal of 20120101020112 is 21102010102102.

It is a junction number, because it is equal to n+sod(n) for n = 20120101020092 and 20120101020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120101020113) 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, 2107474123 + ... + 2107483669.

Almost surely, 2^{20120101020112} is an apocalyptic number.

It is an amenable number.

20120101020112 is a deficient number, since it is larger than the sum of its proper divisors (19515884114480).

20120101020112 is a wasteful number, since it uses less digits than its factorization.

20120101020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16856 (or 16850 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20120101020112 its reverse (21102010102102), we get a palindrome (41222111122214).

The spelling of 20120101020112 in words is "twenty trillion, one hundred twenty billion, one hundred one million, twenty thousand, one hundred twelve".