20120102102112 has 24 divisors (see below), whose sum is σ = 52815268018296. Its totient is φ = 6706700700672.

The previous prime is 20120102102083. The next prime is 20120102102153. The reversal of 20120102102112 is 21120120102102.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 20120102102091 and 20120102102100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104792198353 + ... + 104792198544.

It is an arithmetic number, because the mean of its divisors is an integer number (2200636167429).

Almost surely, 2^{20120102102112} is an apocalyptic number.

It is an amenable number.

20120102102112 is an abundant number, since it is smaller than the sum of its proper divisors (32695165916184).

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

20120102102112 is a wasteful number, since it uses less digits than its factorization.

20120102102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209584396910 (or 209584396902 counting only the distinct ones).

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

Adding to 20120102102112 its reverse (21120120102102), we get a palindrome (41240222204214).

The spelling of 20120102102112 in words is "twenty trillion, one hundred twenty billion, one hundred two million, one hundred two thousand, one hundred twelve".