20120002112112 has 80 divisors (see below), whose sum is σ = 60850738136832. Its totient is φ = 5608362954240.

The previous prime is 20120002112099. The next prime is 20120002112123. The reversal of 20120002112112 is 21121120002102.

It is a junction number, because it is equal to n+sod(n) for n = 20120002112091 and 20120002112100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730241818 + ... + 730269369.

Almost surely, 2^{20120002112112} is an apocalyptic number.

It is an amenable number.

20120002112112 is an abundant number, since it is smaller than the sum of its proper divisors (40730736024720).

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

20120002112112 is a wasteful number, since it uses less digits than its factorization.

20120002112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460511246 (or 1460511240 counting only the distinct ones).

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

Adding to 20120002112112 its reverse (21121120002102), we get a palindrome (41241122114214).

The spelling of 20120002112112 in words is "twenty trillion, one hundred twenty billion, two million, one hundred twelve thousand, one hundred twelve".